ASME IX Interpretation-Part4

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Interpretation Detail Print to PDF Please limit your selection on the search results screen to 10 interpretations. Standard Designation: BPV Section IX Edition/Addenda:

Para./Fig./Table No: Subject Description:

Section IX, QW-214

Record Number:

BC-81-309

Date Issued:

Interpretation Number :

06/09/1982 IX-82-21

Question(s) and Reply(ies): Question: Is it required that the entire bend test specimen for procedure qualification of overlay (QW-214) be covered with overlay weld metal? Reply: No.

Standard Designation: Edition/Addenda:

Para./Fig./Table No:

BPV Section IX

Subject Description:

Section IX, 1974 Edition, QW-403.6

Record Number:

BC-78-263

Date Issued:


06/23/1978 IX-78-83

Question(s) and Reply(ies): Question: If the thickness of the test plate or pipe is more than 5/8 in. and QW-403.6 is specified as a Supplementary Essential Variable, what is the minimum thickness qualified?

Reply: When QW-403.6 is required as a Supplementary Essential Variable for notch toughness, the minimum thickness qualified when the test plate or pipe is greater than 5/8 in. is 5/8 in. The minimum thickness specified in QW-451 is the minimum thickness qualified, except when QW-403.6 is listed as a Supplementary Essential Variable.



BPV Section IX


Section IX, QW-422, A-Numbers vs. AWS Requirements

Record Number:

BC-78-266

Date Issued:


06/23/1978 IX-78-84

Question(s) and Reply(ies): Question: Prior to the Winter 1976 Addenda of Section IX, the E8018-C3 electrodes met the A-No. 12 category of QW-442. What is the A-Number category for this electrode in the revised QW-442 A-Numbers?

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Reply: All E8018-C3 electrodes now meet the requirements for A-No. 10 in QW-442. This was also true in 1976. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-201.1 and QW-201.2

Record Number:

BC-78-404

Date Issued:


07/05/1978 IX-78-85

Question(s) and Reply(ies): Question (1): Is it the intent of QW-201.1 to list on the Welding Procedure Specification each essential and nonessential variable required for each process whether the variable is applicable for that particular process or not? Reply (1): It is the intent of QW-201.1 as stated: "The WPS information may be presented in any form, written or tabular, to fit the needs of each manufacturer or contractor as long as every essential and nonessential variable required of the appropriate welding process or processes (QW-252 through QW-281) is included." Question (2): Do the requirements of QW-201.2 on the Procedure Qualification Record require a similar enumeration?

Reply (2): The requirements of QW-201.2 call for the Procedure Qualification Record to document the essential variables of the applicable process or processes required by QW-252 through QW-281. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-305

Record Number:

BC-78-408

Date Issued:


07/11/1978 IX-78-86

Question(s) and Reply(ies): Question: Is it the intent of the Code, QW-305, that if a man qualifies using a semi-automatic process (submerged arc), is he also qualified using automatic submerged arc where the arc is positioned via a fully motorized manipulator?

Reply: It is the intent of the Code that welding operators would be governed by the requirements of QW-305 which would cover all automatic processes. Semi-automatic submerged arc process, which would be performed by a welder, would need to comply with the requirements of QW-304 and QW354.



BPV Section IX Section IX, Summer Addenda, QW-202.2


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Date Issued:

07/31/1978


IX-78-87

Record Number:

BC-78-132

Question(s) and Reply(ies): Question (1): Is there a limit on the minimum depth of deposited metal for repair or build-up welding? Does this override the minimum limits listed in Table QW-451.1?

Reply (1): If you limit the weld layers to ½ in. or less in thickness, then the minimum limits of QW-451.1 are overridden as far as weld metal thickness is concerned. New work has been done on QW-451.1 which will help clarify this item. Question (2): Does qualification on test plates/material less than 3 in. thick allow repair and build-up welding on base material of thickness up to 2t, with a depth of deposited metal being limited to a maximum of 2t? Reply (2): Yes.

Question (3): Does qualification on test plates/material 3 in. thick or greater allow repair and build-up welding on base material of any thickness, the depth of the deposited metal is limited to a maximum of 2t? Reply (3): Yes.

Question (4): Is it permissible to perform repairs deeper than 6 in. using for qualification plate with a thickness of at least one-half the depth of the repair? Reply (4): Yes.

Question (5): Is it correct to assume that the thickness of the material being repaired refers to the location where the repair is being made? Reply (5): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QB-402.1 and QB-402.2 Material Qualification

Record Number:

BC-78-471

Date Issued:


08/02/1978 IX-78-88

Question(s) and Reply(ies): Question: QB-402.1 and QB-402.2 are Essential Variables for procedure and performance qualification, respectively, which indicate that a change from a base metal listed under one P-Number in QB-422 to a base metal listed under another P-Number or to any other base metal require requalification. Can a procedure which is qualified using ASME SB-12 Alloy 122 be used for the brazing of ASME SB-42 Alloy 122 (P-No. 107) material? Can a procedure which is qualified with ASME SB-466 Alloy 706 (similar to P-No. 107 material, SB-111 Alloy 706) be used to qualify a brazing procedure for joining SB-12 Alloy 122 (similar to P-No. 107 material, SB-42 Alloy 122)? Reply: The answer to both questions presented is in the affirmative that qualification with Alloy 122 or Alloy 706, both included in P-No. 107, will


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qualify all other product forms of that same alloy. The Committee recognizes that the P-Number tables of the Brazing Section of Section IX need revision and updating to cover the other product forms for alloys now listed. The precedent of permitting other product forms of similar chemistry materials has been well established in all the book sections of the Code in their General Requirements paragraphs on materials. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-404.4

Record Number:

BC-80-751

Date Issued:


12/09/1980 IX-80-69

Question(s) and Reply(ies): Question: In the 1977 Edition of Section IX, QW-404.4 stated "A change from one F-Number in QW-432 to any other F-Number or to any other filler metal not listed in QW-432, except if otherwise allowed in QW-310." Using the provision of QW-310.4(a), does a welding procedure qualified with an F-Number up to and including F-No. 4 qualify welding procedures for the same or lower F-Number, all other essential variables being the same? Reply: No. The reference to QW-310 in QW-404.4 was recognized as not being appropriate as the variable is only for procedure qualification and not for performance qualification. The last phrase of QW-404.4 has subsequently been eliminated to prevent such reasoning in the application of this variable.



BPV Section IX


Section IX, QW-182

Record Number:

BC-80-518

Date Issued:


12/12/1980 IX-80-70

Question(s) and Reply(ies): Question: Do the results of a fillet weld fracture test of QW-182 which has inclusions and gas pockets meet the requirements of Section IX provided the sum of these imperfections does not exceed 3/4 in.? Reply: Yes.



BPV Section IX



Record Number:

BC-80-743

Date Issued:


Question(s) and Reply(ies):

12/29/1980 IX-80-71


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Question: Is the change from one proprietary brand name filler metal to another of the same range of chemical analysis specified in the WPS considered a change of essential variable QW-404.4 (A change from one F-Number in QW-432 to any other F-Number or to any other filler metal not listed in QW-432)? Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Welder Qualification

Record Number:

BC-80-742

Date Issued:


01/05/1981 IX-81-01

Question(s) and Reply(ies): Question: Does a groove in a procedure test coupon of thickness T have to be filled completely with weld metal to meet the requirements of Section IX for a groove weld procedure test coupon? Reply: No.



BPV Section IX



Record Number:

BC-80-630

Date Issued:


01/20/1981 IX-81-02

Question(s) and Reply(ies): Question (1): A welding procedure is qualified on a base material with a thickness of 1.125 in. Two welding processes are used. The deposited weld metal thickness for each process is GMAW Short Circuiting Transfer Mode 0.125 in., SAW 1 in. What is the maximum base metal thickness qualified by this combination procedure? Reply (1): 1.2375 in. maximum. See QW-200.4 and QW-403.10.

Question (2): A welding procedure is qualified on a base material thickness of 0.280 in. using the GMAW Short Circuiting Transfer Mode. A second welding procedure is qualified on a base material thickness of 1.500 in. by the GTAW and SAW processes. A new WPS is written using these two procedures, using GMAW Short Circuiting Transfer Mode for the first layer with SAW balance. What is the maximum base metal thickness qualified by combining these two procedures? Reply (2): 0.308 in. maximum. See QW-200.4 and QW-403.10. Standard Designation: Edition/Addenda:


BPV Section IX Section IX, Multiprocess Thickness Ranges


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Date Issued:

01/20/1981


IX-81-03

Record Number:

BC-80-676

Question(s) and Reply(ies): Question (1): When using individually a process that was qualified in combination with another process, what benefit is gained by stating a base metal thickness range that is greater than the deposited weld metal thickness range allowed? Reply (1): The thicker base metal thickness range is primarily needed for combination process welds wherein both base metal and deposited weld metal thickness ranges must be qualified. But the thicker base metal range may also be used when welding base metals of dissimilar thicknesses or for partial penetration groove welds wherein the base metal thickness is greater than the weld groove preparation and, therefore, is greater than the deposited weld metal thickness.

Question (2): A new WPS is to be written utilizing a multiprocess procedure GTAW-SAW qualified in combination, and a single procedure qualified by itself. The multiprocess procedure was qualified using a base metal thickness of 1½ in. The single process procedure was qualified on a base material with a thickness of ½ in. by the GMAW-S (short circuiting process). The new WPS will use the GMAW-S process for the root pass and SAW balance. What is the maximum base metal thickness that can be welded using this combination of processes? Reply (2): 0.550 in. maximum. See QW-200.4 and QW-403.10. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-282.4(f)

Record Number:

BC-80-754

Date Issued:


01/28/1981 IX-81-04

Question(s) and Reply(ies): Question: In reference to hard facing weld metal overlay essential variable QW-282.4(f), does the phrase "... beyond the range specified" refer to the current range specified in the Procedure Qualification Record (PQR) or the Welding Procedure Specification (WPS)? Reply: The range referred to above is that which is listed on the WPS. Supporting PQR's must be within the specified range.



BPV Section IX



Record Number:

BC-80-746

Date Issued:


Question(s) and Reply(ies):

03/05/1981 IX-81-05


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Question (1): A welder was performance qualified with the manual SMAW process and the semiautomatic SAW process on January 1, 1980. He welded using the SMAW process on January 15, 1980. Must he weld using the semiautomatic SAW process on or before April 15, 1980 to remain qualified with the semi-automatic SAW? Reply (1): If there is no additional welding after the SMAW on January 15, 1980, the SMAW qualification will expire on April 16. Since the welder is no longer employed on some other welding process, his semiautomatic SAW qualification will also expire on April 16.

Question (2): A welder was qualified with SMAW and semiautomatic SAW on January 1, 1980. He welds using SMAW on March 15, 1980 and May 15, 1980. Must he weld using semiautomatic SAW after July 1? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-80-748

Date Issued:


03/05/1981 IX-81-06

Question(s) and Reply(ies): Question (1): Can a contractor who has developed, qualified, and maintained his welding procedure specification and has qualified his welders to these qualified WPS's then place the welders' qualification test papers into a pool of qualified welders maintained by an organized group (in this case, the National Certified Pipe Welding Bureau) for all member contractors to use? Reply (1): Section IX does not recognize or address any organized group with regard to welder qualification. Section IX is explicit that each Manufacturer shall certify that welders have been qualified in accordance with one of his qualified welding procedures specifications in accordance with the requirements of Section IX.

Question (2): Are the organized group and all its member contractors in compliance with Section IX if they use these welders described in Question (1), without qualifying them? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Qualification of Small Diameter Pipe

Record Number:

BC-80-796

Date Issued:


03/05/1981 IX-81-07

Question(s) and Reply(ies): Question: May procedure qualification for fillet welded socket joints less than 3/4 in. in diameter be conducted on the test specimen prescribed for


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performance qualification, with testing as required for performance qualification?

Reply: No. QW-202.2 requires procedure qualification for fillet welds only to be in accordance with QW-180. QW-181.1 refers to QW-462.4(a) as the only acceptable way to qualify such procedures. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-80-801

Date Issued:


03/05/1981 IX-81-08

Question(s) and Reply(ies): Question: May a Certificate Holder subcontract qualification of his welders to a testing laboratory under the following conditions? (a) the Certificate Holder will have specific individuals identified in the testing laboratory to oversee, supervise, and control the qualification test coupons being made; (b) the identified individual (at the test lab) would be compensated separately for his services; (c) the welders will weld to the Certificate Holder's procedures; and (d) the performance qualification test coupons will be tested using the Certificate Holder's established criteria. Reply: No.



BPV Section IX



Record Number:

BC-81-66

Date Issued:


03/05/1981 IX-81-09

Question(s) and Reply(ies): Question: A 2 in. NPS pipe is to be welded, without backing, to a flange to build a nozzle for a Section VIII vessel. The assembly is placed in a positioner and rotated in such a manner that the entire weld is made in the 1G position (maximum 15 deg. off horizontal). Does the welder have to be qualified for small pipe diameter less than 2-7/8 in. O.D. per QW-303.3 and QW-452.3? Reply: In the example cited above, the welder would have to be qualified for small diameter pipe (less than 2-7/8 in. O.D.).



BPV Section IX



Record Number:

BC-81-69

Date Issued:

03/05/1981


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IX-81-10

Question(s) and Reply(ies): Question (1): Do the small diameter qualification requirements of QW452.3 apply to welders who weld small diameter (less than 2-7/8 in. O.D.) drill through bosses or weld pads that will later be drilled out to form a branch connection to a pressure component? Reply (1): Yes.

Question (2): If the answer to the above question is yes, how is the wall thickness determined and what tests are to be performed on the test coupon? Reply (2): The wall thickness is not a consideration. Refer to QW-452.3 for requirements based on deposited weld metal thickness. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-80-747

Date Issued:


03/12/1981 IX-81-11

Question(s) and Reply(ies): Question (1): A procedure qualification groove weld test is conducted on 2 in. thick base metal. A root pass of 1/8 in. is deposited with GTAW, and the balance is filled with SMAW. The coupon is sectioned and meets the acceptance criteria for the required testing. Is this procedure qualified for a base metal thickness of 3/16 in. through 8 in.?

Reply (1): Yes, provided the thickness ranges for deposited weld metal are observed. However, for a procedure consisting of only GTAW, the range of base metal thickness is 1/16 in. through 8 in. with 1/16 in. through 1/4 in. of deposited weld metal. Question (2): Is the procedure described in Question (1) qualified for deposited 1/4 in. of GTAW and 7-3/4 in. of SMAW on 8 in. thick base metal? Reply (2): Yes.

Question (3): May the PQR described in Question (1) be used to support a procedure consisting only of SMAW for both base metal and deposited weld metal ranges of 3/16 in. through 8 in.? Reply (3): Yes.

Question (4): May the PQR described in Question (1) be used to support a procedure consisting only of GTAW for both base metal and deposited weld metal ranges of 1/16 in. through 1/4 in.? Reply (4): Yes. Standard Designation: Edition/Addenda:

BPV Section IX



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Section IX, QW-163

Record Number:

BC-80-797

Date Issued:


03/12/1981 IX-81-12

Question(s) and Reply(ies): Question: A recent weld test using dissimilar materials SA-516 Gr. 70 to A 238 Gr. 9 was given a postweld heat treatment at 1350°F for 6 hr to meet the requirements of application for ANSI B31.1, ANSI B31.3, Section VIII, and welded fittings SA-234 Grade P9. While the tension tests were acceptable with this heat treatment, the side bends failed with a brittle type fracture at the interface of the A 387 Gr. 9 plate and weld deposit, with no visible weld defects. During welding the test coupons were maintained at 400-600F and allowed to cool after welding beneath an insulating blanket. Since QW-163 does permit cracking if not the result of slag inclusions or other internal defects, would the side bends be acceptable despite the complete fracture? Reply: No.



BPV Section IX


Section IX, Repair Welding

Record Number:

BC-80-800

Date Issued:


03/12/1981 IX-81-13

Question(s) and Reply(ies): Question: Is it necessary to make full thickness butt welds in thick test materials to qualify for minor surface repair, overlay, or buildup welding on thick parts? Reply: The Summer 1980 Addenda to Section IX revised QW-202.3. This paragraph states in part, "The upper limit for base metal and deposited weld metal shall be in accordance with QW-451, except qualification on 1½ in. thick base metal will permit welding on unlimited thickness." There is a conflict between QW-202.3 and QW-202.2 in both the Summer and Winter 1980 Addenda that is applicable to this matter. QW-202.3 is correct and reference to the 3 in. thick base metal in QW-202.2 should be ignored. Corrections to these paragraphs will be made by Errata in the Summer 1981 Addenda.



BPV Section IX


Section IX, QW-305

Record Number:

BC-81-42

Date Issued:


03/12/1981 IX-81-14

Question(s) and Reply(ies): Question: Is a welding operator who is qualified to weld to a WPS in one process and position qualified to weld to any other WPS in this same process in all positions?


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Reply: Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-43

Date Issued:


03/12/1981 IX-81-15

Question(s) and Reply(ies): Question: When using either SMAW or GTAW, does welding with F-No. 5 (A-No. 8), F-No. 6 (A-No.8), or F-No. 43 filler materials on a P-No. 5 to P-No. 5 base material (with 3% maximum chromium content), also qualify for welding with the following base metals (using the same welding process and filler materials): P-No. 4 to P-No. 5, P-No. 4 to P-No. 4, P-No. 1 to P-No. 5, P-No. 1 to P-No. 4, and P-No. 1 to P-No.l? Reply: QW-403.11 allows a procedure qualified with P-No. 1,3, 4 or 5 (3% maximum chromium content) base metal welded to itself to qualify for that P-Number base metal welded to each of the lower P-Number base metals. Therefore, for the example cited above, the following base metal combinations are qualified (using the.same welding process and filler materials): P-No. 5 to P-No. 5, P-No. 4 to P-No. 5, P-No. 3 to P-No. 5, and P-No. 1 to P-No. 5.



BPV Section IX


Section IX, QW-163

Record Number:

BC-81-57

Date Issued:


03/12/1981 IX-81-16

Question(s) and Reply(ies): Question: In QW-163, is the total amount of defect allowed on the surface of one bend strap a total of 1/8 in.?

Reply: There may be any number of defects as long as any one defect does not exceed 1/8 in.



BPV Section IX



Record Number:

BC-81-59

Date Issued:


03/12/1981 IX-81-17

Question(s) and Reply(ies): Question: For SMAW, SAW, GMAW, GTAW, and PAW welding processes, QW-403.11 and QW-403.12 state that for P-Nos. 1,3, 4, and 5 (of 3% maximum nominal chromium content) a procedure qualification test with one P-Number metal shall also qualify for that P-Number metal


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welded to each of the lower P-Number metals (i.e., P-No. 5 to P-No. 5 also qualifies P-No. 5 to P-No. 4, P-No. 5 to P-No. 3, and P-No. 5 to P-No. 1). Does this also mean that a procedure qualification test with one P-Number to a lower P-Number (e.g., P-No. 5 to P-No. 4) will also qualify that P-Number to lower P-Numbers (e.g., P-No. 5 to P-No. 3 or P-No. 5 to P-No. 1 )? Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-72

Date Issued:


03/12/1981 IX-81-18

Question(s) and Reply(ies): Question: Is a welder qualified with backing for SMAW also qualified to weld flare bevel groove welds, tee fillet welds, and partial penetration groove welds? Reply: Yes.



BPV Section IX


Section IX, Thickness Qualification

Record Number:

BC-80-803

Date Issued:


05/13/1981 IX-81-21

Question(s) and Reply(ies): Question (1): Is a right angle joint between a piece of 3/4 in. thick material and a 2 in. thick material where there is a "J" preparation in the 3/4 in. piece considered a groove weld? Reply (1): Yes.

Question (2): What is the minimum thickness of test plate that will qualify a 3/4 in. to 2 in. dissimilar thickness groove weld? Reply (2): 1 in.; QW-202.4 contains qualification requirements for joints between dissimilar base metal thicknesses. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-78

Date Issued:


05/13/1981 IX-81-25


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Question(s) and Reply(ies): Question: Is it required by QW-409.8 to list a voltage range on welding procedure specifications written for manual SMAW and GTAW? Reply: Yes.



BPV Section IX


Section IX, QW-322

Record Number:

BC-81-104

Date Issued:


05/13/1981 IX-81-26

Question(s) and Reply(ies): Question: A welder has not used a specific process for a period of 3 months or more, but during that 3 month period has taken and passed a performance qualification test with a different process. Would this welder's qualification on the first process be extended to 6 months? Reply: Yes.



BPV Section IX


Section IX, QW-407

Record Number:

BC-81-153

Date Issued:


05/13/1981 IX-81-29

Question(s) and Reply(ies): Question: Do welding procedures have to be qualified for each different heat treatment to comply with QW-407 for nonferrous materials of P-Nos. 41,42, 43, 44, and 45? Reply: Yes.



BPV Section IX


Section IX, Qualification of an Autogenous Seal Weld

Record Number:

BC-80-804

Date Issued:


05/13/1981 IX-81-22

Question(s) and Reply(ies): Question:Will the following course of action provide an acceptable method of qualifying an autogenous weld: (a) fuse the root of a groove weld using the GTAW process with no filler metal added; (b) complete welding of the joint with the addition of filler metal; (c) perform all required mechanical testing; and (d) modify the WPS based on the PQR developed as a result of (c), eliminating all but the fused GTAW root pass from the actual production weld? Reply: Yes, provided that the applicable thickness ranges are not violated.


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BPV Section IX


Section IX, QB-422

Record Number:

BC-81-18

Date Issued:


05/13/1981 IX-81-23

Question(s) and Reply(ies): Question (1): Why are the P-Number groupings in QB-422 changed from time to time, including elimination of some alloys?

Reply (1): P-Number groupings in QB-422 am changed periodically for a number of reasons. These reasons include additions or deletions of alloy types in SA/SB specifications, occasional determinations that certain alloy types are not brazable, and infrequently, alloys are inadvertently eliminated as part of the editing and printing process. Question (2): Can materials that have been eliminated from the P-No. 107 grouping in the Summer 1980 Addenda of Section IX be used? Reply (2): Materials that have been eliminated from the P-Number groupings cannot be used unless a Code Case is approved or Errata is published which permits their use to the Section IX Edition and Addenda from which they were removed. Alloys C 120, C 122, and C 142 (SB-75) were inadvertently dropped from P-No. 107 in the 1980 Edition, Summer 1980 Addenda and action is presently in progress to restore them in QB422. Question (3): Are Alloys C122 (SB-75) and C102 (SB-42) in the temper drawn condition acceptable when only annealed properties are shown in QB-422?

Reply (3): Copper alloys in the temper drawn condition are acceptable for use. Annealed properties are shown in the P-No. 107 grouping because temper drawn material will be annealed during the brazing operation. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-322

Record Number:

BC-81-142

Date Issued:


05/13/1981 IX-81-27

Question(s) and Reply(ies): Question (1): In accordance with QW-322, may qualifications of a welding operator in a specific process be continuously extended by welding as a qualified welder in the same welding process (e.g., SAW, GMAW, FCAW)? Reply (1): No.

Question (2): In accordance with QW-322, may the qualifications of a welder in a specific process be continuously extended by welding as a


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qualified welding operator in the same welding process (e.g., SAW, GMAW, FCAW)? Reply (2): No.

Question (3): In accordance with QW-322, may both the expired welder and welding operator qualifications of an employee in a specific welding process (e.g., SAW, GMAW, FCAW) be re-established if the employee successfully makes only one test joint using all the variables of the previous welder test joint for the specific welding process (e.g., SAW, GMAW, FCAW)? Reply (3): The previous welder qualifications are reinstated, but not the welding operator qualifications.

Question (4): In accordance with QW-322, may both the expired welder and welding operator qualifications of an employee in a specific welding process (e.g. SAW, GMAW, FCAW) be re-established if the employee successfully makes only one test joint using all the variables of the previous welding operator test joint for the welding process (e.g., SAW, GMAW, FCAW)? Reply (4): No. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-152

Date Issued:


05/13/1981 IX-81-28

Question(s) and Reply(ies): Question (1): Two welders have been qualified for a thickness of deposited weld metal from 1/16 in. to 3/4 in. for a particular welding process. A third welder is qualified for a deposited weld metal thickness of 3/16 in. to 1 in. for the same welding process. A 1 in. thick pipe is to be welded in production, using a single vee butt joint, with the same process for which the welders are qualified. Is it permissible for each of the first two welders to deposit 1/2 in. of weld metal to complete the weld? Reply (1): Yes.

Question (2): Using the same welders and joint configuration as given in Question (1), one of the welders qualified for a deposited weld metal thickness range of 1/16 in. to 3/4 in. deposits the root pass. The welder qualified for 3/16 in. to 1 in. deposited weld metal thickness range completes the weld. Is a third welder required to deposit the weld reinforcement, or is it permissible for the welder who completed the weld to deposit the reinforcement? Reply (2): The welder who completed the weld may deposit the weld reinforcement. Standard Designation: Edition/Addenda:

BPV Section IX


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Section IX, QW-451

Record Number:

BC-81-247

Date Issued:


05/13/1981 IX-81-36

Question(s) and Reply(ies): Question: Does qualification of a welding procedure using 1½ in. thick plate qualify for welding up to 8 in. even when notch toughness is a criteria? Reply: Yes, except as further limited by QW-451.



BPV Section IX



Record Number:

BC-80-299

Date Issued:


03/27/1981 IX-81-19

Question(s) and Reply(ies): Question (1): For manual GTAW when notch toughness is a consideration, QW-409.1 requires requalification of a WPS if there is an increase in the heat input during production. Does this mean that WPS must be qualified using constant monitoring devices to establish the voltage, amperage, and travel speed at any point in time? Reply (1): No. Constant monitoring devices to establish the voltage, amperage, and travel speed at any point in time are not required in order to meet the requirements of QW-409.1 for manual GTAW.

Question (2): For manual GTAW when notch toughness is a consideration, QW-409.1 requires requalification of a WPS if there is an increase in the heat input during production. For a multipass weld, must the maximum heat input be established for each pass by constant monitoring during WPS qualification? Reply (2): No. Constant monitoring to establish maximum heat input for each pass on multiple pass welds is not required during WPS qualification in order to meet the requirements of QW-409.1 for manual GTAW.

Question (3): For manual GTAW when notch toughness is a consideration, QW-409.1 requires requalification of a WPS if there is an increase in heat input during production. Is it required that an average heat input be obtained for the full thickness of the test coupon to establish a maximum? If it is not required, is it permissible? Reply (3): No. Average heat input is not required to be established for the full thickness of the test coupon to establish a maximum in order to meet the requirements of QW-409.1 for manual GTAW. It is permissible to establish average heat input during procedure qualification as it is permissible to take any additional data desired by those performing the procedure qualification.


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Question (4): If QW-409.1 does not require that average heat input be determined, how is the heat input established for multiple pass procedure qualification? Must it be established for each pass?

Reply (4): QW-409.1 requires requalification when an increase in heat input occurs over that qualified. Maximum heat input is established during procedure qualification by determination of the maximum amperage and voltage in combination with the least travel speed, or, alternatively, the maximum volume of weld metal deposited per unit length of weld. Heat input is not required to be determined for each pass. Question (5): QW-410.7 requires requalification of a WPS when there is a change in the width, frequency, or dwell time of oscillation. Does Section IX prohibit the use of manual GTAW when notch toughness is a requirements since QW-410.7 cannot be complied with?

Reply (5): No. Section IX does not prohibit the use of manual GTAW when notch toughness is a requirement. The Summer 1980 Addenda to Section IX is clear that the supplementary essential variable QW-410.7 applies only to machine or automatic welding. Question (6): Does QW-410.7 apply to the stringer bead technique or just to the weave bead technique?

Reply (6): QW-410.7 applies only to machine or automatic welding where there is a change in width, frequency, or dwell time of oscillation. The stringer bead technique in machine or automatic welding can be viewed as a special case of the weave bead technique where frequency and dwell time of oscillation are at or near zero. Question (7): The stringer bead technique is defined in Section IX as a "type of weld bead made without appreciable weaving motion." Industry practice seems to consider "appreciable" to be no more than two and onehalf times the diameter of the filler wire. Does Section IX agree with this definition of "appreciable" and, if not, what does Section IX consider as "appreciable"?

Reply (7): It is not appropriate to redefine or further define stringer bead technique in the context of manual GTAW and the supplementary essential variable QW-410.7. The supplementary essential variable QW-410.7 applies only to a change in width frequency or dwell time of oscillation for machine or automatic welding. Section IX does not establish or endorse what may or may not be industry practice. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, PWHT

Record Number:

BC-81-154

Date Issued:


05/13/1981 IX-81-30

Question(s) and Reply(ies): Question (1): A Manufacturer's WPS to weld P-No. 4 to P-No. 4 metals specifies a minimum preheat temperature of 150°C (302°F) with PWHT at 593°C (1099°F) to 650°C (1202 °F). The supporting PQR to this WPS


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shows PWHT was performed at 700° C (1292°F) to 720°C (1328°F). Does the PWHT of the PQR support this WPS?

Reply (1): Yes. However, the WPS must be modified to include the range of the PQR. Question (2): When qualifying a WPS, a welded tensile test specimen of SA-106 Gr. A (48,000 psi UTS) failed at 45,600 psi, which is 95% of the UTS of the pipe. The UTS of the failed specimen conforms to QW-153(d). May this WPS be used to weld P-No. 1 to P-No. 1 metals using 70,000 psi filler metal which is other than the A-Number and F-Number shown on the PQR? Reply (2): No. See QW-404.4. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-462

Record Number:

BC-81-163

Date Issued:


05/13/1981 IX-81-31

Question(s) and Reply(ies): Question (1): Is "full pipe thickness" of QW-151.2(a) defined as that thickness which results from the machining (within standard commercial tolerances) required by QW-462.1(b)? Reply (1): No. Full pipe thickness is the thickness before machining.

Question (2): Is the 3/4 in. dimension of QW-462.1(b) a minimum or a recommendation? If it is a minimum, is there a maximum? If it is a recommendation, is there a tolerance at which the size becomes unresponsive to the requirements of Section IX?

Reply (2): The 3/4 in. dimension is a recommendation. It is not intended to be a minimum or maximum. As little material as necessary should be machined to obtain parallel surfaces for testing. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Procedure Qualification Variables

Record Number:

BC-80-749

Date Issued:


05/13/1981 IX-81-20

Question(s) and Reply(ies): Question (1): On the WPS, is it necessary to specify the Group Number after the P-Number?

Reply (1): The Group Number must be listed after the P-Number when the referencing book Section specifies impact test requirements for notch toughness applications.


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Question (2): On QW-482, is it necessary to specify the pipe diameter range? Reply (2): No.

Question (3): On the WPS and PQR, is it necessary to specify or record the minimum preheat, maximum interpass, and preheat maintenance temperatures for materials not requiring heat treatment?

Reply (3): The Code requires all variables listed in QW-250 (by process) be listed on the WPS, and, therefore, preheat (not less than 100F below the PQR) shall be listed on the WPS, the preheat maintenance shall be described (or "none" if not required) on the WPS, and the interpass temperature (not more than 100F above the PQR) shall be listed on the WPS when impact tests are required for notch toughness applications. The Code requires all essential variables listed in QW-250 (by process) be listed on the PQR, and, therefore, the actual interpass temperature shall be recorded on the PQR when impact tests are required for notch toughness applications. Question (4): On the WPS and PQR, is it necessary to specify or record the PWHT on materials when the Code does not require heat treatment? Reply (4): When the Code does not require PWHT, the WPS and PQR would list PWHT as not applicable.

Question (5): On QW-482 and QW-483, does travel speed pertain only to automatic welding?

Reply (5): Travel speed is only a variable in some applications of the supplementary essential variable QW-409.1. When the QW-409.1(a) is employed, the travel speed is an essential variable which must be recorded on the PQR and controlled in production within the parameters of the heat input formula of QW-409.1(a) manual, semiautomatic, machine, and automatic welding applications. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Welding Positions and Thickness Qualifications

Record Number:

BC-81-44

Date Issued:


05/13/1981 IX-81-24

Question(s) and Reply(ies): Question (1): When applying QW-405.2 where notch toughness is required, what positions are qualified by the welding procedure qualification test?

Reply (1): When applying QW-405.2, any position not involving the vertical uphill progression will qualify for all positions, except those involving the vertical uphill progression. Any position involving the vertical uphill progression win qualify for all positions, including those involving the vertical uphill progression. For example, qualification on a test coupon in the 2G position will qualify 4G and 5G downhill, but not 3G uphill. Qualification on a test coupon in 3G uphill progression will qualify 4G, 6G uphill progression, and all other positions.


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Question (2): In cases where notch toughness is required, what range of interpass temperature is qualified by the welding procedure qualification test? Reply (2): When notch toughness is required, the maximum interpass temperature that may be used in production shall be no more than 100F higher than the maximum interpass temperature recorded during the welding of the procedure qualification test coupon.

Question (3): In cases where cavities on base metals or weld metal are weld repaired: (a) What is the definition of performance qualification thickness of deposited weld metal qualified for performance qualification? (b) What is the minimum thickness of deposited weld metal for welder performance qualification? Reply (3): The replies are as follows: (a) The performance qualification thickness for deposited weld metal for weld repair is the depth of the prepared cavity. (b) There is no limit on the minimum depth of deposited weld metal. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-205

Date Issued:


05/13/1982 IX-81-32

Question(s) and Reply(ies): Question: QW-200.4 states, in part: "One or more processes or procedures may be deleted from a production joint..." In a procedure for a GTAW root and SMAW fill, can the GTAW root be deleted and the production joint welded completely using SMAW? Reply: The joint can be completely welded with SMAW provided this process has been properly qualified for the deposited weld metal thickness range to be used in the production joint.



BPV Section IX


Section IX, QW-451

Record Number:

BC-81-207

Date Issued:


05/13/1981 IX-81-33

Question(s) and Reply(ies): Question: When determining the range of base metal thickness qualified for procedure qualification, is the thickness of the piece after welding or the thickness tested used? For example, a weldment was made using 3/4 in. material; however, the actual thickness tested was 0.714 in. Does one use 3/4 in. or 0.714 in. in determining the base metal thickness range qualified? Reply: The thickness of the test coupon welded is used; therefore, in the example cited above, one would determine the base metal thickness range qualified using 3/4 in.


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BPV Section IX


Section IX, QW-322

Record Number:

BC-81-208

Date Issued:


05/13/1981 IX-81-34

Question(s) and Reply(ies): Question: If welder qualifications are reviewed during the end of each calendar quarter (i.e., March, June, September, and December), and it is determined that a particular welder employed and qualified only in one welding process used that process during the beginning of that 3 month quarter only, may his qualification be extended to the end of the next quarter or will his qualification expire 3 months from the date he last welded with that process in order to comply with QW-322?

Reply: His qualification will expire 3 months from the date he last welded.



BPV Section IX


Section IX, QW-201

Record Number:

BC-81-216

Date Issued:


05/13/1981 IX-81-35

Question(s) and Reply(ies): Question (1): If a welding procedure has been qualified at one unit of an international organization, can it be used at another unit of the same organization in another country without being qualified on site at the second unit provided that the welders at the second unit are qualified for performance to the procedure? Reply (1): Yes, provided the controls required by QW-201 are established to the satisfaction of the Boiler and Pressure Vessel Committee.

Question (2): Is the purpose of a procedure qualification to prove that a given set of parameters will produce a satisfactory weld, or to demonstrate that the parameters plus local conditions (e.g., the efficiency of a stress relieving furnace, or state of repair of welding plant, etc.) must be proven in combination to produce a satisfactory weld? Reply (2): The purpose of procedure qualification is given in QW-100.1. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-462.1 (a)

Record Number:

BC-81-359

Date Issued:


09/14/1981 IX-81-37


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Question(s) and Reply(ies): Question: A reduced section specimen was prepared per QW-462.1(a) from a plate having a thickness of less than 1 in. The W dimension of the specimen was measured to be 0.997 in. QW-462.1 (a) states "W = approx. 1½ in., but not less than 1 in. if it does not exceed 1 in." Does the specimen described above meet the requirements of QW-462.1(a)? Reply: No.

ATTENTION

The foregoing Interpretation has been further considered, and the following corrected Question sent to the inquirer. Correction Issued: March 30, 1982

Question: A reduced section specimen was prepared per QW-462.1(a) from a plate having a thickness of less than 1 in. The W dimension of the specimen was measured to be 0.997 in. QW-462.1 (a) states "W = approximately 1½ in., but not less than 1 in. if t does not exceed 1 in ." Does the specimen described above meet the requirements of QW-462.1 (a)? Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-434

Date Issued:


09/14/1981 IX-81-38

Question(s) and Reply(ies): Question: A test coupon is prepared as follows: A 1 in. thick plate has an 1/8 in. step machined from its top. A plate 1/8 in. thick is placed into the section of the 1 in. thick plate that has been machined and is then butted to the unmachined portion. This forms a dissimilar thickness joint, which is welded using the GTAW process. The coupon then satisfactorily passes the qualification testing. Would the joint described above qualify for a base metal thickness range of 1/16 in. to 2 in. and deposited weld metal thickness range of 1/16 in. to 1/4 in.? Reply: Yes.



BPV Section IX


Section IX, QW-163

Record Number:

BC-81-435

Date Issued:


09/15/1981 IX-81-39

Question(s) and Reply(ies): Question: A side bend test was performed on a procedure qualification test specimen. The specimen showed open defects exceeding 1/8 in. on the convex surface after bending. An analysis was made of the defects and showed them to be caused by slag inclusions and blowholes. Since the


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defects can be shown to be caused by the above imperfections, can the results of the test be considered satisfactory? Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-407

Record Number:

BC-80-802

Date Issued:


09/15/1981 IX-81-40

Question(s) and Reply(ies): Question (1): What is the critical temperature range for PWHT specified in QW-407.1?

Reply (1): For ferritic steels, QW-407.1(b), PWHT below the critical range, is considered to be a heat treatment performed below the lower transformation temperature. QW-407.1 (c), PWHT above the critical range, is considered to be a heat treatment performed above the upper transformation temperature. QW-407.1(d), PWHT above the critical range followed by PWHT below the critical range, is a normalizing and tempering heat treatment which is performed initially above the upper transformation temperature and after cooling reheated to a temperature below the lower transformation temperature. Question (2): QW-407.1 does not mention PWHT conducted in the critical range. Should we understand that PWHT is generally not conducted in the critical range, or PWHT above the critical range includes PWHT in the critical range also?

Reply (2): While QW-407.1 does not specifically address PWHT performed within the critical range (between lower transformation and upper transformation temperatures), it is the intent of the Code that when the specified temperature range of the WPS is within the lower transformation temperature, a separate qualification is required. Question (3): QW-407.2 refers to temperature range. (a) What is the definition of temperature range? (b) What is the allowable difference between the PWHT of the WPS and PQR?

Reply (3): QW-407.2 states "Weldments constructed with P-No. 11 metals and other P-Number metals for which impact tests are required, a change in the PWHT (see QW-407.1) temperature and time range requires a PQR." (a) See A-1 for the temperature range clarification of QW-407.1 which requires separate qualification. (b) It is the intent of the Code that the PWHT temperature range used in developing the PQR shall be within the PWHT range specified on the WPS. Question (4): QW-407.2 refers to heat treatment of base metals. Should we understand that: (a) Where the base metal of the fabrication is subjected to heat treatment (e.g., hot forming in the normalizing temperature range) before welding, should the base metal used for the PQR test be subjected to a similar heat treatment before welding? (b) Is (a) above required when the base metal for the PQR test is a piece of metal removed from the plate or component to be fabricated, which has been subjected to a heat treatment?


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Reply (4): The base metal used for PQR test shall be of the same P-Number and Group Number that is to be used in fabrication. The procedure qualification test coupon shall be subjected to heat treatment essentially equivalent to that encountered in the heat treatment of base metals and in the fabrication of the weldments, including at least 80% of the aggregate times at temperature(s). Question (5): Is there a publication available on the application/usage/interpretation of QW-407? Reply (5): No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-200

Record Number:

BC-80-505

Date Issued:


09/16/1981 IX-81-41

Question(s) and Reply(ies): Question (1): How does a fabricator specify and qualify an essential variable consisting of a range?

Reply (1): In cases in which the essential variable consists of a range for which the party specifying the range is responsible, he is expected to use judgement in setting the range. This may include prior testing in confirming this judgement for setting or specifying the range. It is not generally practicable to have too narrow a range and meet the capabilities of control and measuring equipment, nor too wide a range and still meet the combinations of the several essential variables required for the application. When qualifying a procedure having such variables, the full range of these variables specified in the WPS need not be tested. The PQR should list the actual range of the variable as measured during the welding of the qualification test coupon.

Question (2): A procedure was qualified using SA-240, Type 304, with an E 308-16 electrode. If a procedure using SA-240, Type 316L, with an E316L16 electrode is now required (all essential variables remaining the same), is a new or revised WPS required and does such a change require a new PQR? Reply (2): A new WPS or a revision to the WPS would be sufficient to document this change. Since there is no change of essential variable, no requalification or new PQR is necessary. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-312

Record Number:

BC-81-254

Date Issued:


09/16/1981 IX-81-42

Question(s) and Reply(ies): Question: When the welder or welding operator is qualified for hardfacing weld metal overlay in accordance with a qualified hardfacing weld metal


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overlay procedure, is he qualified to weld in accordance with all hardfacing weld metal overlay procedures using the same welding process?

Reply: No. The essential variables for performance qualification for hardfacing weld metal overlay are identical to those controlling the welding procedure specification as given in QW-282. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-308

Date Issued:


09/16/1981 IX-81-43

Question(s) and Reply(ies): Question (1): When notch toughness tests are specified, supplemental essential variable QW-405.2 becomes a requirement for qualification of welding procedures utilizing certain processes. QW-120 identifies the vertical position as the 3G position. Will qualification of a welding procedure in the 5G position following an uphill progression satisfy QW405.2? Reply (1): Yes.

Question (2): Will qualification of a welding procedure in the 6G position following an uphill progression satisfy QW-405.2, even though the welding groove is not vertical? Reply (2): Yes.

Question (3): If the answers to Questions (1) and (2) are affirmative, from which coupon should the impact specimens representing the heat affected zone be taken, upper or lower? Reply (3): Impact specimens are taken from the areas of maximum heat input, which are generally about the 9 o'clock and 3 o'clock positions. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-442

Record Number:

BC-81-334

Date Issued:


09/16/1981 IX-81-44

Question(s) and Reply(ies): Question: When welding filler metal specifications, such as SFA-5.28 ER805-D2, for bare solid electrodes for use with the GMAW or GTAW processes having chemical composition determined by analysis of the solid wire, how are A-Numbers established for QW-442? Reply: Where bare solid electrodes are used for the GMAW or GTAW processes, the analysis shown in the filler metal specification may be used in establishing the A-Numbers in QW-422. However, if an actual chemical analysis of the weld metal deposited by either of these two processes with


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such solid bare electrodes is made, that analysis shall be employed in establishing the A-Number of the filler material in accordance with QW442. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Preamble

Record Number:

BC-81-345

Date Issued:


09/16/1981 IX-81-45

Question(s) and Reply(ies): Question (1): QW-100.3 states that a Manufacturer may perform any new qualifications needed for a particular contract to the Addenda mandatory for the particular contract. These qualifications to previous Addenda may not be used on new orders. This appears to be in conflict with the Preamble, which requires all new qualifications to be made to the Addenda mandatory on the date of qualification. May a manufacturer qualify all new welding procedure specifications and performance qualifications to the requirements of the Code Edition and Addenda made mandatory at the date of order? Reply (1): Yes.

Question (2): May a Manufacturer qualify all new welding procedures and welders or welding operators for a specific job to any Code Edition and Addenda after the Code Edition and Addenda made mandatory at the date of order? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Plug Welds

Record Number:

BC-81-418

Date Issued:


09/16/1981 IX-81-46

Question(s) and Reply(ies): Question (1): A manufacturer has PQR's available from previously qualified groove weld procedures. Could these PQR's be used to support procedures written to fabricate plug welds, all other essential variables being the same? Reply (1): Yes.

Question (2): What type of test is required for welder qualification when plug welds are to be used in production?

Reply (2): The welder should be qualified by a groove weld test joint in which range of thickness of deposited weld metal qualified encompasses that thickness required by the production joint.

Question (3): What method of examination should be used to examine the quality of the production weld?


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Reply (3): The method of examination of production welds is specified by the fabrication code (i.e., Section VIII - Divisions 1 and 2, B31.1, etc.) Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-322

Record Number:

BC-81-455

Date Issued:


11/02/1981 IX-81-47

Question(s) and Reply(ies): Question (1): Concerning the renewal of performance qualification given in QW-322, must the welder be in the continuous employ of the Manufacturer? Reply (1): No.

Question (2): If a welder leaves the employ of a Manufacturer and later returns to that same Manufacturer, can his qualifications be renewed for all previous qualifications per QW-322? Reply (2): Yes.

Question (3): When a welder is being tested for renewal of his qualifications, is it necessary to test him using all the essential variables for which he was qualified using a specific process?

Reply (3): No. QW-322 allows the welding of a single test joint to reinstate the welder's previous qualifications for a specific process. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Visual Examination

Record Number:

BC-81-238

Date Issued:


01/21/1982 IX-82-01

Question(s) and Reply(ies): Question: Is it necessary to achieve complete penetration for single welded test coupons throughout their entire length, or only where the specimens are to be removed? Reply: Complete penetration for single welded test coupons is required throughout their entire length. See QW-301.2, QW-191.2.2(a)(1), and QW452.1 Note (1).


Para./Fig./Table No: Subject Description: Date Issued:

BPV Section IX Section IX, QW-402.1 01/21/1982


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Record Number:


BC-81-450 IX-82-02

Question(s) and Reply(ies): Question: QW-402.1 states, "A change in the type of groove (Vee-groove, U-groove, single-bevel, double-bevel, etc.)." This variable is a nonessential variable for SMAW, GTAW, GMAW, and FCAW. Currently, a Manufacturer states, "All groove designs" under joint design in the WPS. Is this practice acceptable, or is it required to either include these in the WPS or reference another document that illus-trates all possible joint configurations? Reply: The practice of stating "all groove designs" on the WPS to satisfy QW-402.1 is not acceptable. Because the WPS is for the guidance of the welder or welding operator, a Manufacturer must state on the WPS the types of joints permitted in production. Alternatively, a reference to a drawing or other document that describes the allowable production joints is permitted.



BPV Section IX


Section IX, QW-191.2.2

Record Number:

BC-81-565

Date Issued:


01/21/1982 IX-82-03

Question(s) and Reply(ies): Question (1): Can permissible maximum defect size be measured directly from the charts of rounded indications in Appendix I of QW-191.2.2?

Reply (1): No. It is not intended that the sketches be sized to determine acceptance criteria. Criteria for acceptance of rounded indications are given in the text of QW-191.2.2(b). Question (2): What is the maximum size of a single rounded indication in welds of 3.5 mm (0.1365 in.) thickness and 6.0 mm (0.234 in.) thickness? Reply (2): See QW-191.2.2(b).

Question (3): What is the minimum separation between two rounded indications, each of the maximum permissible dimension?

Reply (3): There is no requirement in Section IX governing separation of rounded indications.

Question (4): QW-191.2.2(b)(3) states that rounded indications less than 1/32 in. in maximum diameter shall not be considered in the 1/8 in. or greater material thickness range. Does this statement override the standards given in QW-191.2.2(b)(1)? Reply (4): Yes. It is not applicable for thinner materials. Standard Designation: Edition/Addenda:


BPV Section IX Section IX, QW-404.9


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Date Issued:

01/21/1982


IX-82-04

Record Number:

BC-81-566

Question(s) and Reply(ies): Question: How does QW-404.9 affect the qualification of procedures for SAW using the various grades (classifications) of stainless steels listed in SFA-5.9 Table 1?

Reply: Requalification of a WPS to QW-404.9 is required under the following conditions: (a) Any change in flux classification listed in an SFA Specification or a change to a flux not listed in an SFA Specification. (b) Any change of electrode classification listed in Table 1 of SFA-5.9 that changes the deposited weld metal chemistry beyond that specified in the WPS as an A-Number designation. For a change from a bare cored to a stranded electrode, or vice versa, in the same electrode classification, requalification is not required.



BPV Section IX


Section IX, QW-452

Record Number:

BC-81-570

Date Issued:


01/21/1982 IX-82-05

Question(s) and Reply(ies): Question (1): Must a welder be qualified on small diameter pipe (i.e., less than NPS 2½) if he is required to weld the root pass of a set-on nozzle that consists of a 1½ in. double extra strong coupling that is larger than 2-7/8 in. O.D.? Reply (1): No.

Question (2): Does QW-452.3 allow a welder qualified on 10 in. diameter pipe to weld a small diameter (i.e., less than 2-7/8 in. O.D.) set on nozzle to a shell whose outside diameter is greater than 2-7/8 in.? Reply (2): No.

Question (3): Regarding performance qualification, are thickness limitations linked to each position? For example, a welder is presently qualified to weld unlimited thicknesses in the flat, horizontal, and vertical positions. If a separate test is given to qualify him for the overhead position, must this test be given a thickness of ¾ in. or greater to qualify for unlimited thicknesses in this position? Reply (3): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Peening

Record Number:

BC-81-595; BC-81-642

Date Issued:

01/21/1982


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IX-82-06

Question(s) and Reply(ies): Question: Is the mechanical removal of slag defined as peening, and must it be addressed as such on the WPS under Technique (QW-410)? Reply: No.



BPV Section IX


Section IX, QW-452

Record Number:

BC-81-635

Date Issued:


01/21/1982 IX-82-07

Question(s) and Reply(ies): Question (1): If a procedure for the GTAW, GMAW, or SMAW process is qualified in accordance with Section IX, utilizing a 6 in. diameter pipe coupon with a single vee groove joint, is the procedure qualified for all diameters of pipe if the essential variables of the procedure remain the same? Reply (1): Yes.

Question (2): If a welder is qualified in accordance with the requirements of Section IX on a 6 in. diameter test coupon with a single vee groove joint for the GTAW, SMAW, or GMAW process, does he require requalification if the production weld he is making is on a pipe with an outside diameter of below 2-7/8 in. with a single vee groove? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-637

Date Issued:


01/21/1982 IX-82-08

Question(s) and Reply(ies): Question: Occasionally, slag is trapped between the backing ring or strap and the base metal during the welding of a welder's qualification test assembly. When the initial radiograph with the backing in place shows the above condition, can the backing ring or strap be removed and the weld test coupon subsequently be resubmitted for additional radiography to satisfy the welder performance qualification test? Reply: Yes.



BPV Section IX Section IX, QW-200


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Date Issued:

01/21/1982


IX-82-09

Record Number:

BC-82-23

Question(s) and Reply(ies): Question (1): Do the rules of Section IX require that the dimensions of tensile test specimens be recorded on PQR's or be available as part of the records, or is it sufficient to only have recorded the tensile strength? This question is both for the case where procedure qualification was performed prior to 1962, but met the requirements of the 1962 Edition of Section IX, and for the case where procedure qualification was performed after 1962, but met the requirements of the Edition and Addenda in effect at the time of qualification. Reply (1): It is sufficient to have recorded the tensile strength of each test specimen on the PQR's.

Question (2): For PQR's qualified prior to 1962 that meet the requirements of the 1962 Edition of Section IX and for PQR's qualified in 1962 and later that meet the requirements of the Edition and Addenda of Section IX in effect at the time of qualification, is it required that the following nonessential variables be recorded on the PQR for the SMAW and GTAW procedures? (a) voltage (b) current Reply (2): (a) No (b) No

Question (3): Is it permissible under the rules of Section IX to use PQR's prepared and certified in 1959 and later to qualify other WPS's prepared in 1981, provided the essential and supplementary essential variables (when required) specified in the Edition and Addenda of Section IX in effect at the time the 1981 WPS was written were recorded on the PQR's that had been prepared and certified at earlier dates? Reply (3): Yes.

Question (4): When using a PQR prepared in 1959 or later to qualify a WPS prepared and used in 1981, do the rules of Section IX require a Certificate Holder to provide to the Authorized Inspector a copy of the original WPS (dated 1959 or later and no longer in use) as well as a copy of the Edition and Addenda of Section IX in effect at the time the PQR was prepared? Reply (4): No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-214 and QW-216

Record Number:

BC-81-146

Date Issued:


02/09/1982 IX-82-10

Question(s) and Reply(ies): Question (1): If SFA-5.13 RCoCr-A filler metal is used for weld metal overlay, what means shall be used to assure conformance with Section IX? Reply (1): The testing shall be performed in accordance with the requirements of a hard facing weld metal overlay.


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Question (2): A weld metal overlay is termed corrosion resistant, e.g., aluminum bronze; however, the overlay material is of a brittle nature and will undoubtedly break if subjected to the required bend testing. By what means may conformance with Section IX be assured?

Reply (2): The material is termed corrosion resistant. Therefore, it must be tested in accordance with QW-214. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-466.2, 1980 Edition With Winter 1981 Addenda

Record Number:

BC-81-618

Date Issued:


02/09/1982 IX-82-11

Question(s) and Reply(ies): Question: When carrying out welding procedure qualification tests per Section IX for 6 mm thick unalloyed titanium (SB-265, P-No. 51) plates using GTAW process with filler SFA-5.16 ERTi-1, what is the required mandrel diameter using the guided bend roller jig according to QW-466.2? Reply: The diameter of the mandrel of the guided bend roller jig (QW466.2) shall be 8t (see the Winter 1981 Addenda to Section IX).



BPV Section IX



Record Number:

BC-80-798

Date Issued:


03/15/1982 IX-82-13

Question(s) and Reply(ies): Question (1): Does a PQR for corrosion resistant weld metal overlay that utilized an SFA-5.9 E (b R308 filler metal support a WPS that specifies SFA-5.9 ER309 filler metal? Reply (1): No. Separate qualification is required for each AWS classification.

Question (2): Does a PQR for corrosion resistant weld metal overlay that utilized an SFA-5.4 E308-xx filler metal support a WPS that specifies SFA-5.4 E309-xx filler metal? Reply (2): No. Separate qualification is required for each AWS classification.

Question (3): Does reference to "...Each AISI type of A-No. 8 or A-No. 9..." of QW-282.2(c) refer to QW-442 or to base metal specifications? Reply (3): This phrase refers to QW-442 in Section IX (each "AISI type" is intended to be "AWS classification"). Standard Designation:

BPV Section IX


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Edition/Addenda:


Section IX, QW-153

Record Number:

BC-81-701

Date Issued:


03/15/1982 IX-82-16

Question(s) and Reply(ies): Question: A tensile specimen broke in the weld metal at a tensile strength below the minimum strength of the base metal. When the requirements of QW-153.1(c) are not applicable, does this specimen pass the tension test? Reply: No.



BPV Section IX


Section IX, QW-452

Record Number:

BC-82-117

Date Issued:


03/15/1982 IX-82-19

Question(s) and Reply(ies): Question: Is a welder required to take a small diameter pipe test to weld a pipe through a plate when the weld preparation on the plate is less than 2-7/8 in O.D. and the welds are reinforced with fillet welds? Reply: No.



BPV Section IX


Section IX, QW-462.2(a)

Record Number:

BC-82-132

Date Issued:


03/15/1982 IX-82-20

Question(s) and Reply(ies): Question: Is it permissible to use subsize thickness side bends for test coupons welded in the 1/16 in. to 3/8 in. inclusive range?

Reply: Side bends are only permitted for test coupons 3/8 in. thick and greater.


Para./Fig./Table No: Subject Description: Date Issued:

Record Number:


BPV Section IX Section IX, QW-214, QW-216, QW-407, and QW-492, 1980 Edition Through Summer 1981 Addenda 03/12/1982 BC-81-703 IX-82-12


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Question(s) and Reply(ies): Question (1): QW-216.1 states that the minimum hard facing weld metal overlay thickness shall be as specified in the WPS. Is the maximum hard facing weld metal overlay thickness qualification unlimited?

Reply (1): Yes. The minimum thickness qualified is also defined in QW462.5 as the thickness corresponding to the upper surface of the material used for chemical analysis. The larger of the minimum thicknesses specified shall govern. Question (2): The requirements of Section IX do not address the maximum corrosion resistant weld overlay thickness qualified. Is the maximum thickness qualified unlimited? Reply (2): Yes.

Question (3): Neither QW-214 nor QW-281 address the minimum corrosion resistant weld metal overlay thickness qualified. Is there a minimum thickness qualification? Reply (3): Yes. The minimum thickness qualified is defined in QW-462.5 as the thickness corresponding to the upper surface of the material used for chemical analysis. QW-462.5 is referenced by QW-214.3.

Question (4): For procedure qualification of dissimilar metals, one groove face has been buttered (as defined in QW-492) with 0.187 in. of weld metal. Based on this, are the minimum and maximum thicknesses for the buttered portion unlimited? Reply (4): The maximum thickness of the buttering is unlimited. The minimum thickness shall be sufficient to provide a suitable transition weld deposit for subsequent completion of the joint, as provided in the definition for buttering in QW-492. Question (5): QW-407 defines changes in PWHT that require requalification of procedures. The critical range is referenced in QW-407.1 and QW-407.4 (prior to the Winter 1981 Addenda). Is this critical range defined as the PWHT range identified in other Sections of the Code (i.e., Section III Table NB-4622.1-1)?

Reply (5): The critical range referenced in QW-407.1 and QW-407.4 refers to the range between the lower and upper transformation temperatures for P-Nos. 1, 3, 4, 5, 6, 9, 10, and 11 materials. This range is not the same as the PWHT range identified in other sections of the Code. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-451

Record Number:

BC-81-636

Date Issued:


03/15/1982 IX-82-14

Question(s) and Reply(ies): Question (1): QW-151.1 requires one tensile specimen for thicknesses up to and including 1 in., while QW-451.1 requires two tension tests for the same thickness range. Which is correct?


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Reply (1): Both are correct. The Code distinguished between tension tests (QW-451.1) and the tensile specimens (QW-150) that are used to make up a tension test. Question (2): In the test coupon thickness range of over 1 to 1-1/4 in., how many turned tensile specimens are required for each tension test? Reply (2): Two.

Question (3): In performing tension tests on a weldment made with two processes, is QW-451.1 Note (4)(b) satisfied if a portion of the weld deposit from each welding process is included in each of the tension tests required by QW-451.1? Reply (3): Yes.

Question (4): If multiple turned specimens are used to represent a single tension test removed from a test coupon that is welded with two processes, must each turned specimen contain weld metal from each process to satisfy the requirements of QW-451.1 Note (4)(b)? Reply (4): No.

Question (5): In the case of a test coupon welded using two welding processes, is the requirement of QW-451.1 Note (4)(d) that toughness testing be applied with respect to each welding process or procedure satisfied with respect to impact test specimens if only a portion of the impact test specimens contains one of the welding processes? Reply (5): Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-700

Date Issued:


03/15/1982 IX-82-15

Question(s) and Reply(ies): Question: QW-404.5, which is an essential variable for procedure qualification, describes requirements for requalification when the weld deposit A-Number changes. It also states "...In lieu of an A-Number designation, the chemical composition of the weld deposit shall be indicated on the WPS..." Does this mean that all filler metals that do not fall within an A-Number classification of QW-442 require chemical analysis of an undiluted weld pad, and the results reported on the WPS? Reply: No. QW-404.5 requires specification of the chemical composition of the weld deposit. It does not prohibit use of filler metal manufacturer literature in specifying a nominal deposit chemistry.





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Date Issued:

03/15/1982


IX-82-17

Record Number:

BC-82-99

Question(s) and Reply(ies): Question: QW-403.9 states: "For single or multipass welding in which any pass is greater than 1/2 in., an increase in thickness beyond 1.1 times that of the qualification test coupon." Does the phrase "...greater than 1/2 in..." refer to width or thickness?

Reply: The phrase shown in the Question refers to the thickness of any pass.



BPV Section IX


Section IX, QW-407

Record Number:

BC-82-102

Date Issued:


03/15/1982 IX-82-18

Question(s) and Reply(ies): Question (1): Does QW-407.1(b), per the Winter 1981 Addenda to Section IX, require a PQR for PWHT of P-No. 8, normally stabilized, at temperatures corresponding to below the lower transformation temperature of carbon or low alloy steel? Reply (1): Yes.

Question (2): Does QW-407.1(b), per the Winter 1981 Addenda to Section IX, require a separate PQR for PWHT for each of the following conditions: annealing only, annealing followed by stress relief, and stress relief only? Reply (2): Yes.

Question (3): If annealing is employed as PWHT, is the annealing temperature that recommended by the Material Manufacturer? Reply (3): Section IX does not specify annealing temperature.

Question (4): Is the annealing temperature range left to the discretion of the Manufacturer or must it be within normal operating ranges?

Reply (4): Section IX requires the PWHT temperature range to be specified on the WPS by the Manufacturer. Section IX does not assign specific annealing temperature ranges. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-451 1980 Edition Through Summer 1981 Addenda

Record Number:

BC-81-640

Date Issued:


06/09/1982 IX-82-22

Question(s) and Reply(ies): Question (1): A PQR was prepared with multiple F-Number electrodes using the SMAW process. The first 1/4 in. was welded with F-No. 3 filler


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metal and the remaining 1/2 in. with F-No. 4 filler metal. Does the Winter 1980 Addenda (same as the Summer 1981 Addenda), QW-451.1 Note 4(e) permit the PQR to support a WPS qualified for a base material range of 1/16 in. through 1-1/2 in. and deposited weld metal range from 1/16 in. through 1/2 in. with F-No. 3 filler metal and a range from 3/16 in. through 1 in. with F-No. 4 filler metal? Reply (1): Yes.

Question (2): Given the PQR example of Question (1) above, can an additional WPS be prepared for production welding of base material thickness from 1/16 in. through 1/2 in. using only the F-No. 3 filler material? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-452, 1980 Edition With Summer 1981 Addenda

Record Number:

BC-81-641

Date Issued:


06/09/1982 IX-82-23

Question(s) and Reply(ies): Question (1): Considering Notes (1), (2), and (5) of QW-452.1 and QW404.15 in the Summer 1981 Addenda, what range of thickness of F-No. 3 and F-No. 4 is a welder qualified to use in production welding when the qualification coupon consists of 3/8 in. of F-No. 3 filler metal followed by 3/8 in. of F-No. 4 filler metal in the same test coupon?

Reply (1): The welder is qualified to make production welds from 1/16 in. through 3/4 in. using F.-No. 4 electrodes. Because of QW-404.15 (an essential variable for the SMAW process), the welder is also qualified from 1/16 in. through the maximum to be welded for F-No. 3 electrodes. Question (2): Is it intended by the Notes to QW-452.1 in the Summer 1981 Addenda that substitution of the term "process" may be made for filler metal F-Number? Reply (2): No, although sometimes this results because of the essential variable QW-404.4.

Question (3): To what production thickness is a welder qualified as the result of welding a 3/4 in. thick coupon by depositing 1/16 in. F-No. 3 electrodes followed by 11/16 in. of F-No. 4 electrodes?

Reply (3): The welder is qualified from 1/16 in. through the maximum to be welded for F-No. 3 electrodes because of QW-404.15. The welder is also qualified from 3/16 in. through 1-3/8 in. for F-No. 4 electrodes. Standard Designation: Edition/Addenda:




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Date Issued:

06/09/1982


IX-82-24

Record Number:

BC-81-695

Question(s) and Reply(ies): Question: Is it permissible to use QW-202.3 on a 1-1/2 in. thick base metal if a postweld heat treatment will be performed? Reply: QW-202.3 only covers the deposited weld metal and base metal thickness ranges qualified. All other requirements of Section IX and the referencing Code(s) shall also be met.



BPV Section IX


Section IX, QW-192

Record Number:

BC-82-1

Date Issued:


06/09/1982 IX-82-25

Question(s) and Reply(ies): Question: May studs be welded using an SMAW procedure that has been qualified on a groove weld coupon rather than by the stud welding process? Reply: Yes, provided all essential variables for SMAW remain the same.



BPV Section IX


Section IX, QB-407

Record Number:

BC-82-55

Date Issued:


06/09/1982 IX-82-26

Question(s) and Reply(ies): Question (1): A test coupon consisting of a socket type brazed joint contains a preplaced filler metal within a groove. When brazed, uneven flow occurs in each direction: 0.2 in. toward the base of the socket and 0.4 in. toward the outside of the socket. Does QB-407(c) apply? Reply (1): No, QB-407(c) does not apply because major flow has occurred. Question (2): What constitutes major flow, as referenced in QB-407(b) and (c)? Reply (2): Major flow is the required distribution of the molten filler metal throughout the joint. When the filler metal is preplaced in the joint using material such as shims and foils so that the entire joint is essentially occupied, major flow does not occur during the brazing process. Standard Designation: Edition/Addenda:


BPV Section IX Section IX, QW-202.3(a) and QW-403.6, 1980 Edition With Summer 1981 Addenda


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Date Issued:

06/09/1982


IX-82-27

Record Number:

BC-82-185

Question(s) and Reply(ies): Question (1): In the 1980 Edition with the Summer 1981 Addenda, QW202.3(a) states that there is no limit on the minimum depth of deposited weld metal for repair or buildup welding. Does this also apply for repair or buildup of base materials subject to notch toughness (impact) requirements? Reply (1): Yes.

Question (2): QW-403.6, which is a supplementary essential variable for base materials when there are notch toughness requirements, states that for base material thickness less than 5/8 in., the thickness of the PQR test coupon is the minimum thickness of base material qualified for production welds. Is it a requirement of Section IX that the term production welding as used in QW-403.6 is to include repair or buildup welding? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-82-204

Date Issued:


06/09/1982 IX-82-28

Question(s) and Reply(ies): Question: When a performance qualification test is given for the GTAW process using a consumable insert, is this considered welding with backing per QW-402.4? Reply: No. See QW-404.22.



BPV Section IX



Record Number:

BC-82-235

Date Issued:


06/09/1982 IX-82-29

Question(s) and Reply(ies): Question: An SMAW procedure has been qualified joining P-No. 8 material to P-No. 5 (Cr-3% max.) material with an F-No. 43 electrode. Per QW403.11, must a new procedure be qualified to join P-No. 8 materials to P-Nos. 4, 3, or 1 materials with an F-No. 43 electrode? Reply: Yes.


BPV Section IX



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Section IX, QW-200.1(b), QW-451, and QW-452

Record Number:

BC-82-236

Date Issued:


06/09/1982 IX-82-30

Question(s) and Reply(ies): Question (1): QW-200.1 requires the WPS to list in detail information on the base metals that may be used with this procedure. What is the range of thickness that may be encompassed by a single WPS? Reply (1): There are no limits on the range of thickness that may be given on a single WPS. However, the range of thickness on the WPS must be supported by one or more PQR's.

Question (2): Note (1) of QW-451.1 and QW-451.2 make reference to "...QW-402(.2, .3, .6, .9, .10)..." for further limitations on the range of thickness qualified. Are these limitations applicable only when listed among the essential variables or supplementary essential variables (when applicable) for a particular process? Reply (2): Yes.

Question (3): What are the tolerances for those dimensions listed without tolerances in QW-462?

Reply (3): Where the Code does not specify dimensional tolerances, the dimensions given in the figures are to be considered approximate. They are not intended to be minimum or maximum values. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Preparation of Test Coupons

Record Number:

BC-82-244

Date Issued:


06/09/1982 IX-82-31

Question(s) and Reply(ies): Question (1): How much material may be removed from the surface of a performance bend test specimen prior to testing? Reply (1): The minimum necessary to create approximately parallel surfaces.

Question (2): May hand grinding be used to remove material from a performance bend test specimen prior to testing? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-456

Date Issued:

11/02/1981


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IX-82-48

Question(s) and Reply(ies): Question (1): A welding procedure has been qualified to weld P-No. 8 material using an open butt joint design with argon backing gas. Per QW408.5, can the argon backing gas be deleted without requalifying the procedure? Reply (1): Yes. QW-408.5 covers the deletion or addition of backing gas and since this is a non-essential variable for applicable processes, requalification is not required. Question (2): Does QW-408.2 refer specifically to shielding gases or all gases used during welding? Reply (2): QW-408.2 refers only to shielding gases. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-451

Record Number:

BC81-702

Date Issued:


07/02/1982 IX-83-01

Question(s) and Reply(ies): Question: Is a Welding Procedure Specification (accomplished immediately prior to the Winter 1977 Addenda), encompassing a GTAW root pass followed by SMAW fill, and which is supported by a Procedure Qualification Record that utilizes tension and impact test data compiled from specimens that did not include the GTAW portion of the weld, in compliance with the 1980 Edition of Section IX by virtue of QW-100.3? Reply: Yes.



BPV Section IX


Section IX, Variable Q-11 of the 1971 Edition

Record Number:

BC81-704

Date Issued:


07/02/1982 IX-83-02

Question(s) and Reply(ies): Question (1): Does Q-11 V-10(c) apply to the WPS or PQR? Reply (1): It applies to the WPS.

Question (2): Does Q-11(b)(5) apply to the WPS or the PQR? Reply (2): It applies to the WPS.

Question (3): Was it a requirement of Section IX that the maximum current and voltage and the minimum travel speed of the WPS not exceed the heat input of the PQR? Reply (3): ASME Section IX, 1971 Edition, Winter 1973 Addenda, did not address this matter.


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BPV Section IX


Section IX, QW-200

Record Number:

BC82-056

Date Issued:


07/02/1982 IX-83-03

Question(s) and Reply(ies): Question (1): Is omission of an essential, nonessential (or supplementary essential) variable from a WPS interpreted to be a negative response for that variable? Reply (1): No. The Code requires that every variable for the appropriate welding process or processes (QW-252 through QW-282) be listed on the WPS.

Question (2): Given the following situation: Company "A" was purchased by Company "B," and became a subsidiary of Company "B" on a given acquisition date. Are PQR's developed by Company "A" prior to the acquisition date acceptable for support of WPS's written by Company "B" after the acquisition date?

Reply (2): Yes, provided operational control is in accordance with QW-201 and is established to the satisfaction of the ASME Boiler and Pressure Vessel Committee.

Question (3): What support evidence (documentation) must an organization produce to show that companies of different names have satisfactorily demonstrated to the ASME Boiler and Pressure Vessel Committee operational control of welding procedure qualifications?

Reply (3): The quality control system must describe the operational control. It is expected that the operational control will have been accomplished when the quality control manual has been reviewed and accepted at the time of a survey or joint review for new Certificates of Authorization or renewal of expiring Certificates. At intervals between renewal of Certificates, proposed changes in the accepted Quality Control System Manual must be reviewed and accepted by your Authorized Inspection Agency prior to implementation. Question (4): Must a manufacturer or contractor add a specific statement of Code qualification certification to the WPS? Reply (4): No.

Question (5): Is the certification of PQR's required by QW-200.2 considered to meet the WPS Certification required by QW-201? Reply (5): No, the certification of the PQR is separate from any certification requirements of the WPS. Standard Designation: Edition/Addenda:


BPV Section IX Section IX, QW-402.6 and QW-402.10


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Date Issued:

07/02/1982


IX-83-04

Record Number:

BC82-098

Question(s) and Reply(ies): Question (1): QW-402.6 refers to the term "fit-up gap" and QW-415 refers to the term "root gap." Are these terms analogous? Reply (1): Yes.

Question (2): Is a manufacturer allowed a reasonable range on his WPS for nonessential variables QW-402.10 and QW-404.3? Reply (2): Yes.

Question (3): Can a performance qualification test for fillets be conducted on thicknesses using 8 gage or 10 gage production materials? Reply (3): No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-451

Record Number:

BC82-237

Date Issued:


07/02/1982 IX-83-05

Question(s) and Reply(ies): Question (1): A WPS has been qualified for thickness range of 3/16 in. to 8 in. using a pipe coupon 12.75 in. O.D. with a nominal wall thickness of 1.5 in. Can a production weldment using a base material with a manufactured thickness of 0.178 in. be welded with the above WPS when the nominal wall thickness for this material was 0.203 in. and the 0.178 in. manufactured thickness is within the 12.5% manufacturing tolerance? Reply (1): Yes.

Question (2): In accordance with Section IX, does the minimum value of a qualified thickness range apply to the nominal material thickness or the actual thickness of the production weldment material? Reply (2): The minimum qualification thickness value applies to the nominal thickness. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, Tension Tests

Record Number:

BC-81-204

Date Issued:


06/23/1981

IX-ER10-IX-03

Question(s) and Reply(ies): Question: When a reduced section tension test specimen is made in accordance with QW-462.1(a), may the dimension W be reduced to 1/4 in.


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for t greater than 1 in. if the capacity of the test equipment is limited to an ultimate load that will not test a larger specimen to failure?

Reply: No. W must be approximately 1 in. When the capacity of the testing equipment is limited, QW-151.1 (b), (c) and (d) allow the full thickness specimen to be cut into a set of approximately equal strips. That set then must meet the requirements for a full thickness specimen. Each specimen of the set need not contain each welding process used. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QB-404.1

Record Number:

BC-81-206

Date Issued:


06/23/1981

IX-ER10-IX-04

Question(s) and Reply(ies): Question: QB-404.1 requires requalification when the brazing temperature is changed to a value outside of the range stipulated in QB-432. What controls are required under the rule of Section IX to establish the brazing temperature employed?

Reply: Section IX does not stipulate the method of establishing the brazing temperature. Such requirements may be specified in a Quality Assurance Manual or by agreement between the Authorized Inspector and the Certificate Holder.



BPV Section IX



Record Number:

BC-81-220

Date Issued:


06/23/1981

IX-ER10-IX-05

Question(s) and Reply(ies): Question (1): A fabricator uses a proprietary electrode to weld P-No. 1 materials. Company policy is not to reveal the chemical, mechanical, and other properties outside the company except on a need to know basis. The material (E-8018G) contains Cr, Mo, and Ni in small quantities, but less than the minimums shown in QW-442 for A-Nos. 2, 10, 11, and 12. Can this material be considered an A-No. 1 welding material? Reply (1): No.

Question (2): In lieu of listing the actual chemistry of the welding material used to qualify the procedure, can the company material specification on the PQR and WPS meet the requirements of QW-404.5? Reply (2): Yes, provided the requirements of QW-441 are met and the requirements of QW-404.5 are met to the satisfaction of the Authorized Inspector. Standard Designation:

BPV Section IX


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Edition/Addenda:


Section IX, Welder Qualification Testing

Record Number:

BC-81-283

Date Issued:


06/23/1981

IX-ER10-IX-06

Question(s) and Reply(ies): Question (1): Welders are to be qualified on 6 in. NPS coupons in the 6G position using GTAW. The pieces are tacked together and positioned. The bottom of the coupon is sealed and the gas purge line inserted. The top of the coupon is then sealed with a perforated plastic cover. The welder being tested begins welding, while a second welder observes the underside (root) of the weld through the plastic cover. The observer then advises the welder during welding (e.g., "slow down, you're not coming through to fuse the edges," "You're too hot, speed up a little," etc.). Is this practice, called looking-in, permitted for performance qualification testing? Reply (1): Such a practice is not addressed by Section IX.

Question (2): What, if any, advice or instructions to the welder are permitted when he is welding a performance qualification test coupon?

Reply (2): Advice to the welder during performance qualification is not addressed by Section IX. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC-81-237

Date Issued:


06/29/1981

IX-ER10-IX-07

Question(s) and Reply(ies): Question: When the same size tubular structural box members are joined in a tee configuration, the weld joint formed on the sides most nearly resembles a flair bevel groove. However, it differs from a normal flair bevel groove in that the depth the flat side extends into the groove is limited to the wall thickness of the tubular member. When the radius of the tubular box corners is larger than the wall thickness, the resulting joint has an open root (not backed). The root opening is typically about 3/16 in. Given the condition described above (open root, nonstandard flair bevel groove) and given that the design requirement is for partial penetration only (first 1/8 in. of groove is discounted), is a welder, whose SMAW qualification test was against backing or a GTAW root, qualified to weld this joint using SMAW only? Reply: Yes.



BPV Section IX Section IX, QW-201


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Date Issued:

06/22/1981


IX-ER10-IX-01

Record Number:

BC-81-239

Question(s) and Reply(ies): Question: A manufacturer wishes to qualify a procedure under the following conditions. The manufacturer will use the materials, consumables, equipment, plant, and testing facilities of another organization. The welder producing the test weldments is an employee of the manufacturer who is under the supervision of a representative of the manufacturer. All required testing is then done by the organization providing the stated services. Do the conditions described above meet the requirements of QW-201? Reply: Yes, provided the representative supervising the welding is an employee of the manufacturer.



BPV Section IX


Section IX, QW-304

Record Number:

BC-81-277

Date Issued:


06/22/1981

IX-ER10-IX-02

Question(s) and Reply(ies): Question: Can a welder be qualified with radiographic examination using GMAW (low-voltage short circuiting type)? Reply: No.

Copyright © 2016 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME


2016/5/4

ASME IX Interpretation-Part4

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