ASME IX Interpretation-Part10

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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 II, Part C, SFA 5.1, Table 1

Record Number:

BC03-274

Date Issued:

Interpretation Number :

05/19/2003 IX-01-38

Question(s) and Reply(ies): Question: May a welder qualify with E7018 electrode using either uphill or downhill progression? Reply: Yes.

Standard Designation: Edition/Addenda:

Para./Fig./Table No:

BPV Section IX

Subject Description:

QW-403, Base Metal Requirement; QW-404, Filler Metal Requirement

Record Number:

BC00-514

Date Issued:


10/11/2000 IX-01-01

Question(s) and Reply(ies): Question (1): If a WPS is written using the GMAW-S process alone, is T limited to l.l T per QW-403.10 and t limited to l.l t per QW-404.32? Reply (l): Yes.

Question (2): If a WPS is written using FCAW process alone, is T limited to 2T per QW-403.8 and t limited to 2t per QW-404.30? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-201, Manufacturer's or Contractor's Responsibility

Record Number:

BC00-553

Date Issued:


10/11/2000 IX-01-02

Question(s) and Reply(ies): Background: A large majority of fabrication contracted by a design Company A is performed by Manufacturers B and C. Each company is independent in ownership from the other two. Companies A, B, and C have developed a Welding Coalition. The top management of all three companies has executed an Agreement and Commitment protocol consenting to the

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establishment of this Welding Coalition. The Welding Coalition controls all weld procedures developed for use on Company A contracts by Companies B and C under one designated program. The Coalition does not control production welding at either of the manufacturing companies. Weld procedure qualifications performed by Company C are controlled by Company A's Quality Program. Weld procedure qualifications performed by Company B are controlled by Company B's Quality Program that has been approved by Company A. Company C is on Company B's Approved Vendors List. Question: Is it permissible to consider the Welding Coalition as "the organization which has responsible operational control of production of the weldments to be made in accordance with this Code" such that Company B may use weld procedures qualified by Company C and vise versa? Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-194, Visual Examination

Record Number:

BC00-519

Date Issued:


01/03/2001 IX-01-03

Question(s) and Reply(ies): Question: Is a welder's performance qualification test coupon in which undercut is present acceptable, provided that the rest of the examinations and tests are acceptable?

Reply: Yes. However, manufacturers may disqualify welders based on QW301.2 when discontinuities such as undercut and porosity do not comply with the quality requirement of the manufacturer.



BPV Section IX


QW-304.1, Welder's Test Coupon Examination

Record Number:

BC00-653

Date Issued:


01/03/2001 IX-01-04

Question(s) and Reply(ies): Question: Does QW-304.1 require that when radiography is used for examination of welder test coupons for performance qualification, the visual examination per QW-302.4 be performed and documented on the Welder/Welding Operator Performance Qualification record? Reply: No.



BPV Section IX QW-200.2, Welding Procedure Qualification


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Date Issued:

01/03/2001


IX-01-05

Record Number:

BC00-654

Question(s) and Reply(ies): Question: When a nonessential variable is recorded on a PQR, may a new or revised WPS supported by that PQR specify a different range for that nonessential variable from that recorded on the PQR? Reply: Yes.



BPV Section IX


QW-410.51, Addition/Deletion of Oscillation

Record Number:

BC98-240 (Intent Interpretation)

Date Issued:


02/09/2001 IX-01-06

Question(s) and Reply(ies): Background: QW-410.51, addition or deletion of oscillation is an essential variable for GTAW hard-facing. QW-410.1, addition or deletion of weave bead is not a variable for the GTAW hard-facing process.

Question: Is it the intent of Section IX that a PQR developed with a machine or automatic GTAW hard-facing process, with or without oscillation, may be used to qualify a WPS for a manual, or a semiautomatic GTAW hard-facing process, with or without weave?

Reply: Yes. Note that recent actions by Section IX have defined oscillation as applicable to machine and automatic processes and wave as applicable to manual and semiautomatic processes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-410.51, Addition/Deletion of Oscillation (1998 and Earlier Editions)

Record Number:

BC98-240*

Date Issued:


02/09/2001 IX-01-06R

Question(s) and Reply(ies): Background: QW-410.51, addition or deletion of oscillation is an essential variable for GTAW hard-facing. QW-410.1, addition or deletion of weave bead is not a variable for the GTAW hard-facing process.

Question: Is it the intent of Section IX that a PQR developed with a machine or automatic GTAW hard-facing process, with or without oscillation, may be used to qualify a WPS for a manual, or a semiautomatic GTAW hard-facing process, with or without weave? Reply: Yes. Note that recent actions by Section IX have defined oscillation as applicable to machine and automatic processes and weave as applicable to manual and semiautomatic processes.

Standard Designation:

BPV Section IX


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Edition/Addenda:


QW-420.2, Material Grouping

Record Number:

BC01-029

Date Issued:


02/23/2001 IX-01-07

Question(s) and Reply(ies): Background: A PQR is qualified on a P-Number X material to a P-Number Y material. Question (1): Does this PQR support a WPS for welding P-Number X to S-Number Y without changes to any other essential variables? Reply (1): Yes.

Question (2): Does this PQR support a WPS for welding S-Number X to S-Number Y without changes to any other essential variables? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-300.2, Transfer of Record of Performance Qualification

Record Number:

BC01-030

Date Issued:


02/26/2001 IX-01-08

Question(s) and Reply(ies): Question: When a new owner acquires a company or part of a company, does QW-300.2 prohibit continued use of existing welder performance qualifications?

Reply: No. Section IX does not address rules applicable to performance qualification continuity when a new owner acquires a manufacturer or contractor. If welder performance qualification continuity is to be maintained by the new owner, the Quality Control System/Quality Assurance Program should reflect to the source of the welder performance qualification records as being from the former manufacturer or contractor.



BPV Section IX


QW-356, Welding Variables

Record Number:

BC01-032

Date Issued:


02/26/2001 IX-01-09

Question(s) and Reply(ies): Question: A welder was qualified on P-No. 1 material using the GTAW process without gas backing using F-No. 6 filler material. Is he qualified to weld P-No. 8 material using the GTAW process with gas backing using F-No. 6 filler material, provided all other essential variables remain the same?


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Reply: Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-144 and QW-194, Visual Examination

Record Number:

BC01-073

Date Issued:


02/26/2001 IX-01-10

Question(s) and Reply(ies): Question: Are the requirements of QW-144 and QW-194 for visual examination of the test coupon required for the qualifications of a welding procedure? Reply: No.


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

Record Number:


BPV Section IX QW-510 and QW-540 in Article V, Standard Welding Procedure Specifications 06/04/2001 BC01-089 IX-01-11

Question(s) and Reply(ies): Question (1): Under QW-510(d), is it acceptable to weld the demonstration test coupon with only GTAW if the SWPS is for combination GTAW root and SMAW E7018 fill? Reply (1): No. All variables of the SWPSs are considered to be essential variables.

Question (2): Under QW-510(d), is it acceptable to weld the demonstration test coupon with only SMAW E7018 if the SWPS is for combination GTAW root and SMAW E7018 fill? Reply (2): No. All variables of the SWPSs are considered to be essential variables.

Question (3): Under QW-510(d), is it acceptable to weld demonstration test coupon with only SMAW E7018 if the SWPS specifies both E6010 and E7018? Reply (3): No. All variables of the SWPSs are considered to be essential variables.

Question (4): Does Section IX, Article II apply when the fabricator chooses to use SWPSs? Reply (4): No. Ref. para. QW-100.1.

Question (5): When using SWPSs under Article V of Section IX, may a single welding process of a multiple process SWPSs be used to complete a weld?


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Reply (5): No. Ref. paras. QW-540(a) and (c).

Question (6): When using SWPSs under Article V of Section IX, may a single process SWPS for E7018 and a single process SWPS for GTAW be used to complete a weld, assuming all other variables are within the SWPS parameters? Reply (6): No. Ref. paras. QW-540(a) and (c).

Question (7): When using SWPSs under Article V of Section IX, may a single process SWPS for E7018 and a single process SWPS for E6010 be used to complete a weld, assuming all other variables are within the SWPS parameters? Reply (7): No. Ref. paras. QW-540(a) and (c). Standard Designation: Edition/Addenda:


BPV Section IX


QW-322.2(a) and QW-452.1, Rule Change Affecting Welder Qualification

Record Number:

BC01-201

Date Issued:


06/04/2001 IX-01-12

Question(s) and Reply(ies): Background: ASME Section IX, Addenda 2000, revised table QW-452.1 reducing the coupon size from 3/4 in. to 1/2 in. to qualify the welder for "Maximum to be welded" when welding a minimum of three layers.

Question (1): A welder qualified prior to Addenda 2000 and has remained qualified since his original test. His original test coupon consisted of at least three weld layers and greater than 1/2 in. but less than 3/4 in. deposited weld metal. May the qualification recorded be revised from "2t" to "Max. to be welded" subsequent to Addenda 2000? Reply (1): Yes.

Question (2): A welder was qualified prior to Addenda 2000. His qualification has lapsed due to not welding with the original weld process for greater than 6 months. His original test coupon consisted of at least three layers and greater than 1/2 in. but less than 3/4 in. deposited weld metal. His renewal restores his original qualifications in accordance with QW-322.2 (a). May the original qualification record be revised from "2t" to "Max. to be welded" subsequent to Addenda 2000? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


References to Edition and Addenda

Record Number:

BC01-570

Date Issued:


06/26/2001 IX-01-13


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Question(s) and Reply(ies): Question (1): The 1998 Code Edition, as published, incorporates the 1998 Addenda. When providing reference to this Code Edition and Addenda within a Code-required document, may only the Edition be listed (i.e., 1998 Edition)? Reply (1): Yes.

Question (2): For the 1998 Edition only, is it necessary to revise Coderequired documentation where the term "1998 Edition" was used as meaning the 1995 Edition through the 1997 Addenda? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-500, The Use of SWPS's

Record Number:

BC01-332

Date Issued:


09/25/2001 IX-01-14

Question(s) and Reply(ies): Question: May a manufacturer or contractor adopt and use SWPSs in accordance with the rules of Article V for work on Code items built to an edition or addenda prior to the 1998 edition with the 2000 Addenda, provided the construction code does not prohibit the use of SWPSs? Reply: Yes.



BPV Section IX


QW-300.2, Employer's Responsibility

Record Number:

BC01-641

Date Issued:


09/15/2001 IX-01-15

Question(s) and Reply(ies): Background: Section IX requires that the manufacturer, contractor, assembler, or installer "be responsible for conducting tests to qualify the performance of welders which his organization employs in construction of weldments built in accordance with the Code." It also requires that the manufacturer, contractor, assembler, or installer provide supervision and control over welders while they are welding test coupons for performance qualification.

Question (1): An employee of a contractor provides supervision and control over a welder during welding of a test coupon, but that welder is not an employee of the contractor at the time of the test. Is it required that the welder be an employee of that contractor at the time of qualification testing? Reply (1): No.

Question (2): Must the welder be the employee of any manufacturer or contractor at the time of qualification testing?


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Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


Code Case 2142-1 and 2143-1

Record Number:

BC01-338

Date Issued:


12/18/2001 IX-01-16

Question(s) and Reply(ies): Background: The submerged arc welding process is being used to deposit corrosion-resistant weld overlay for Section III, Subsection NB fabrication using a Ni-Cr-Fe alloy strip filler metal and flux combination. The strip filler metal does not meet the chemical requirements of Code Case 2142-1 (bare electrode and rod), but both the filler metal and weld deposit meet the chemical composition limits of Code Case 2143-1 (covered electrodes). Question (1): Must the Ni-Cr-Fe alloy strip filler metal used for the SAW process meet the chemical composition requirements of Code Case 2142-1 to be classified as F-43 for procedure and performance qualifications? Reply (1): Yes.

Question (2): May Ni-Cr-Fe alloy filler metal that is not designated as F-43 per Code Case 2142-1 be used for welding if the welding procedure is qualified separately per QW-404.37? Reply (2): Yes.

Question (3): If the Ni-Cr-Fe alloy strip filler metal meets the chemical composition requirements of Code Case 2143-1 and was produced to the requirements of SFA-5.14, except for the chemical analysis, may the filler metal be classified as F-43 for procedure and performance qualification? Reply (3): No.

Question (4): If the Ni-Cr-Fe alloy strip filler metal is not classified in an SFA specification, and is not covered in Code Case 2142-1 or 2143-1, is it permissible to identify the filler metal and flux on the WPS, PQR, and WPQ by the manufacturer's brand names? Reply (4): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-202.2(b), QW-202.3(b), and QW-407.4

Record Number:

BC01-615

Date Issued:


12/18/2001 IX-01-17

Question(s) and Reply(ies): Background: A groove weld procedure qualification test coupon 1.5 in. thick was welded with the SMAW process using multiple passes of 1/2 in. max. thickness. The test coupon was given a subsequent post weld heat


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treatment exceeding the upper transformation temperature prior to the completion of mechanical testing.

Question: May this PQR be used to support the weld of partial penetration groove welds per QW-202.2(b) or weld repair and buildup welds per QW202.3(b) on base material thickness exceeding 1.65 in.?

Reply: No. Per QW-407.4, a procedure qualification test coupon receiving a post weld heat treatment in which the upper transformation is exceeded, the maximum qualified thickness for production welds is 1.1 times the thickness of the test coupon. Standard Designation: Edition/Addenda:


BPV Section IX


QW-153.1, Acceptance Criteria for Tensile Strength

Record Number:

BC01-772

Date Issued:


12/18/2001 IX-01-18

Question(s) and Reply(ies): Question: Does the minimum specified tensile strength in QW/QB-422 supercede the SA/SB material tensile strength for procedure qualification? Reply: Yes.



BPV Section IX


QW-202.4(b), Dissimilar Base Metal Thickness

Record Number:

BC01-811

Date Issued:


12/18/2001 IX-01-19

Question(s) and Reply(ies): Question: Does QW-202.4(b) permit the maximum weld deposit thickness limit to be extended beyond the limit specified in QW-451.1? Reply: No; QW-202.4 applies only to the base metal thickness limits.



BPV Section IX


QW-407.1, Postweld Heat Treatment

Record Number:

BC01-813

Date Issued:


12/18/2001 IX-01-20

Question(s) and Reply(ies): Question (1): May a procedure qualification record subject to variable QW407.1(a) that included only a PWHT below the lower transformation temperature be used to support a WPS with PWHT above the upper transformation temperature and a subsequent PWHT below the lower transformation temperature ?


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Reply (I): No.

Question (2): Does Section IX address the values to be used as transformation temperature? Reply (2): No. Standard Designation: Edition/Addenda:


Record Number:


BPV Section IX QW- 151.1(d), Reduced Section -- Plate; QW-200.4(b), Combination of Processes: QW-322, Expiration and Renewal of Qualifications 01/19/2002 BC01-035 IX-01-21

Question(s) and Reply(ies): Background [(1), (2), (3)]: A welder is qualified for manual SMAW and GTAW, and semiautomatic FCAW and GMAW.

Question (1): Do welders maintain their qualifications for manual SMAW and GTAW by welding with either semiautomatic GMAW or FCAW? Reply (1): No.

Question (2): Do welders maintain their qualifications for both SMAW and GTAW by welding with only one of the processes during the six-month period? Reply (2): No.

Question (3): Do welders maintain their qualifications for semiautomatic GMAW and FCAW by welding with either GMAW or FCAW during the six-month period? Reply (3): Yes.

Background (4): A WPS was qualified using a Trade Name wire-flux combination that conforms to a classification in ASME Section II, Part C. Question (4): Does the substitution in the qualified WPS of a different Trade Name wire-flux combination that conforms to the same SFA Specification and classification in ASME Section II, Part C require requalification? Reply (4): No.

Background ( 5 ) : The tensile specimens of a 60 mm PQR test plate was divided into three pieces. The sum of the thickness of the three specimens was less than 60 mm.

Question (5): What is the allowable percentage thickness reduction from the original base metal thickness? Reply (5): Section IX does not address this issue. Standard Designation:

BPV Section IX


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Edition/Addenda:


QW-100.3, QW-420.1, P-Number Reassignment

Record Number:

BC01-679

Date Issued:


03/11/2002 IX-01-22

Question(s) and Reply(ies): Question: May a previous qualified WPS, written to permit the welding of P-No. 5, Group 1 material to P-No. 5, Group 4 material prior to the establishment of P-Nos. 5A, 5B, and 5C be used to weld SA-213 T22 to SA-213 T91 materials? Reply: Yes.



BPV Section IX


QW-202.4, Dissimilar Base Metal Thicknesses

Record Number:

BC01-789

Date Issued:


03/11/2002 IX-01-23

Question(s) and Reply(ies): Question: A WPS is qualified to weld base material from 1.6 mm to 20 mm. May that WPS be used for welding a part 30 mm thick that has been tapered to 15 mm thick to another 15 mm part? Reply: Yes.



BPV Section IX


QW-200.4, Impact Test Qualification of Multiprocess Welds

Record Number:

BC01-814

Date Issued:


03/11/2002 IX-01-24

Question(s) and Reply(ies): Question: A welding procedure qualification is made using multiple welding processes on a single test plate for an application where notchtoughness testing is required. The weld coupon was welded with two passes each of GTAW and FCAW, and the remainder with SAW process. Is it required to take multiple sets of weld metal impact test specimens to include all welding processes when all welding could not be included in a single set of specimens? Reply: Yes.



BPV Section IX ASME BPV Section II, Part C


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Date Issued:

03/11/2002


IX-01-25

Record Number:

BC01-815

Question(s) and Reply(ies): Question: Does Section II, Part C mandate the use of SFA 5.01? Reply: No.



BPV Section IX


QW-100.3, The Use of the Referenced Edition of the Code

Record Number:

BC01-826

Date Issued:


03/11/2002 IX-01-26

Question(s) and Reply(ies): Background: A designer specifies a specific year of the ASME Code to be complied with for the fabrication of a component, i.e., including 96 Addenda, and this component is installed in 2003. Question (1): What year of Section IX does the installer use for qualifying welders/welding operators?

Reply (1): Welders are qualified in accordance with the current edition and addenda of Section IX in effect at the time of the qualification. See QW100.3. Question (2): What year of Section II does the installer use for purchasing welding materials? Reply (2): Section IX does not address this issue. The question should be addressed to the applicable construction code. Standard Designation: Edition/Addenda:


BPV Section IX


QW-452.1, Nominal Coupon Thickness

Record Number:

BC02-111

Date Issued:


03/11/2002 IX-01-27

Question(s) and Reply(ies): Question: A welder welds an NPS 6 Schedule 80 test coupon that is 0.432 in. thick. He uses one welding process, one set of essential variables, and deposits at least three layers of weld metal in that test coupon. Is that welder qualified to weld "maximum to be welded?" Reply: No. The nominal coupon thickness must be at least 1/2 in. thick in order for a welder to be qualified for "maximum to be welded."


BPV Section IX



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QW-409.4, Electrical Characteristics

Record Number:

BC02-2691

Date Issued:


05/22/2002 IX-01-28

Question(s) and Reply(ies): Question: Does QW-409.4 apply to the current type used to preheat the filler metal wire when welding GTAW Hot-wire Automatic or machine corrosion-resistant overlay? Reply: No.

Note: This interpretation was inadvertently omitted from Volume 51 of the interpretations. Standard Designation: Edition/Addenda:


BPV Section IX


Section II-C SFA Specifications, Marking of Packages

Record Number:

BC02-2692

Date Issued:


10/03/2002 IX-01-29

Question(s) and Reply(ies): Background: ASME Section II-C SFA specifications state in the "Marking of Packages" paragraphs that the AWS specification and classification designations must be marked on the outside of each unit package.

Question (1): Must filler metal procured to an ASME SFA specification be marked with the ASME SFA specification such as ASME SFA-5.XX? Reply (1): No.

Question (2): Is marking the package with the AWS specification and classification such as AWS A5.XX EXXXX required? Reply (2): Yes.

Question (3): May the material manufacturer add the ASME specification (e.g., SFA-5.XX) to the required AWS markings on the unit container? Reply (3): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-403.5, Base Metal Requirements

Record Number:

BC02-2693

Date Issued:


12/30/2002 IX-01-30

Question(s) and Reply(ies): Question: When impact testing of a heat-affected zone is required for nonferrous base materials of the same P-Number, does a PQR with a UNS number designation (e.g., SB-619, UNS N06022) qualify a WPS that specifies a different UNS number designation (e.g., SB-619, UNS N10276) within the same P-Number?


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Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-423, Alternate Base Materials for Welder Qualification

Record Number:

BC02-2694

Date Issued:


12/30/2002 IX-01-31

Question(s) and Reply(ies): Question (1): May a welder who has qualified on a P-Number base metal within the left column of QW-423 weld any combination of P-Number base metals in the corresponding row of the right column within the limits of the other essential variable limits qualified? Reply (1): Yes.

Question (2): May a welder who has qualified on a P-Number base metal within the left column of QW-423 weld one of the P-Number base metals in the corresponding row of the right column to any other (dissimilar) P-Number in the corresponding row of the right column within the limits of the other essential variable limits qualified? Reply (2): Yes.

Question (3): May a welder who has qualified on a P-Number base metal within the left column of QW-423 welded to an unassigned base metal, weld any combination of P-Number base metals in the corresponding row of the right column to the unassigned metal within the limits of the other essential variable limits qualified? Reply (3): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-200.4(b), Root Pass Procedure Qualification

Record Number:

BC02-3449

Date Issued:


12/30/2002 IX-01-32

Question(s) and Reply(ies): Question: Do the provisions of QW-200.4(b) permit a GTAW procedure qualification test weldment performed on a 13 mm thick coupon to support depositing a root pass in a production joint of the qualified base metal having a thickness of 8 mm when impact testing is required? Reply: No. See QW-403.6.


BPV Section IX



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Date Issued:

Record Number:


QB-203.1, Limits of Qualified Flow Positions for Procedures, and QB408.4, Joint Design; QB-303.3, Limits of Qualified Positions, and QB408.1, Joint Design 03/13/2003

BC02-3541 IX-01-34

Question(s) and Reply(ies): Background (1): QB-203.1 states: "Qualification in pipe shall qualify for plate, but not vice versa. Horizontal-flow in pipe shall qualify for flat-flow in plate." QB-408.4 states: "A change in the joint type, e.g., from a butt to a lap or socket, from that qualified. For lap or socket joints, a decrease in overlap length from that qualified." Question (1): Do procedure qualifications in plate lap joints qualify for tube-to-tube socket joints for brazing procedure qualifications? Reply (1): No.

Background (2): QB-303.3 states: "Qualification in pipe shall qualify for plate, but not vice versa. Horizontal-flow in pipe shall qualify for flat-flow in plate." QB-408.1 states: "A change in the joint type, i.e., from a butt to a lap or socket, from that qualified. For lap or socket joints, an increase in lap length of more than 25% from the overlap used on brazer performance qualification test coupon." Question (2): Do performance qualifications in plate lap joints qualify for tube-to-tube socket joints for brazer performance qualifications? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-404.33, Change in SFA Specification Filler Metal Classification

Record Number:

BC03-263

Date Issued:


05/19/2003 IX-01-37

Question(s) and Reply(ies): Question: Does the expression "a change in the SFA specification filler metal classification" refer to a change in the AWS classification? Reply: Yes.



BPV Section IX


QW-283, Welds With Buttering

Record Number:

BC02-3896

Date Issued:


Question(s) and Reply(ies):

12/30/2002 IX-01-33


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Background: In all cases described below, the manufacturers develop and follow WPSs and PQRs based on the test coupons welded. The minimum buttering thickness in all cases will be greater than 3/I6 in.

Question (1): Manufacturer A qualifies a WPS by buttering the ends of the test coupons, which are the same material. The buttered ends are heat treated, then the weld is completed using the same filler metal as was used for the buttering. Manufacturer B welds a groove weld test coupon of the same base metal using the same process, filler metal and other essential variables as manufacturer A. That test coupon is heat treated in the same manner as the heat treatment used for the buttering by manufacturer A. May manufacturer A weld parts that were buttered by manufacturer B? Reply (I): Yes.

Question (2): Manufacturer C welds a groove weld test coupon using the same base metal, process, filler metal, and other essential variables as manufacturer A. That test coupon is heat treated in the same manner as the heat treatment used for the buttering by manufacturer A. May manufacturer A weld parts that were buttered by manufacturer C? Reply (2): Yes.

Question (3): Manufacturer A receives parts that have been buttered by both manufacturers B and C. May the parts buttered by manufacturer B be welded by manufacturer A to parts buttered by manufacturer C? Reply (3): Yes.

Question (4): Manufacturer D receives parts that have been buttered by manufacturers A, B, and C. May manufacturer D weld the buttered parts together using a buttered groove weld test coupons qualified using the same base metal, process, filler metal, and other essential variables as manufacturer A? Reply (4): Yes.

Question (5): Manufacturer D receives parts that have been buttered by manufacturers A, B, and C. May manufacturer D weld the buttered parts together using a groove weld test coupon qualified in accordance with QW283.4(b) using the same process, filler metal, and other essential variables that manufacturer A used to join the buttered parts (i.e., the as-welded portion of the test) using a base metal that nominally matches the chemical analysis of the buttering used by manufacturer A, B, or C? Reply (5): Yes.

Question (6): Manufacturer E welds a groove weld test coupon of another base metal using the same filler metal as manufacturer A. That test coupon is heat treated and tested in accordance with QW-202.2(a). May manufacturer F, who has welded a test coupon in accordance with QW283.4(b), join parts buttered by manufacturer E? Reply (6): Yes. Standard Designation: Edition/Addenda:

BPV Section IX



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QW-451.1, Procedure Qualification Thickness Limits

Record Number:

BC02-4075

Date Issued:


03/13/2003 IX-01-35

Question(s) and Reply(ies): Question (1): A test coupon is prepared as follows: A 1.75 in. plate is welded to 1.75 in. plate with 1 in. thick weld. Per QW-451.1, is 8 in. the maximum thickness range of base metal qualified?

Reply (1): Yes, except that further limits or exceptions may apply as stated in Notes (1) and (5) of QW-451.1.

Question (2): Using the same test coupon as Question (1), where a single process was used to deposit the entire weld thickness, is 8 in. the maximum thickness of the weld metal permitted per QW-451.1 ? Reply (2): Yes, except that further limits or exceptions may apply as stated in Notes (1) and (5) of QW-451.1. Standard Designation: Edition/Addenda:


BPV Section IX


QW-301.4, Record of Welder Performance Qualification

Record Number:

BC02-4198

Date Issued:


03/13/2003 IX-01-36

Question(s) and Reply(ies): Background: For welder's performance qualification, a multiple layer groove weld is made on a single test coupon using one welder for first layer and another welder for the second. Question: QW-301.4 requires a record of welder performance qualification. May a single form be used to record the essential variables, the type of test and test results, and the ranges qualified in accordance with QW-452 for each welder and welding operator? Reply: Section IX specifies information required to be recorded, but does not specify the format of the records. Standard Designation: Edition/Addenda:


BPV Section IX


QW-401.3, Supplemental Essential Variable (Procedure)

Record Number:

BC03-469

Date Issued:


05/19/2003 IX-01-39

Question(s) and Reply(ies): Background: A company has qualified a PQR to satisfy all testing requirements other than notch toughness for welding P1 Group 2 to P1 Group 2 by the SAW process. Another test coupon is subsequently prepared using the WPS written on the original PQR and an additional PQR is then qualified with only testing for notch toughness, as allowed by the Code, to supplement the original PQR for welding with impact requirements.


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However, the preheat value (an essential variable) used to qualify the original PQR was 150°F. The preheat temperature was less than 150°F.

Question: May the supplemental PQR with reduced preheat be used with the original PQR to support a WPS for notch toughness application? Reply: Yes, provided that the requirements of QW-406.1 are met. Standard Designation: Edition/Addenda:


BPV Section IX


QW-201/QW-201.1, Manufacturer's or Contractor's Responsibility

Record Number:

BC03-740

Date Issued:


05/19/2003 IX-01-40

Question(s) and Reply(ies): Background: Several manufacturing organizations within the same company perform welding procedure qualifications in accordance with Section IX. Each manufacturing organization performs these activities in accordance with specific Quality Assurance Program(s)/Quality Control System(s) that comply with their ASME Construction Code Certificate(s) of Authorization and describe operational control of qualifications. Question: Is it permissible for any of the manufacturing organizations within the company to use WPSs and PQRs qualified by any of the other manufacturing organizations? Reply: Yes, this is permitted by QW-201. Standard Designation: Edition/Addenda:


BPV Section IX


QW-151.3(b), Tension Test Turned Specimen

Record Number:

BC02-3586

Date Issued:


09/15/2003 IX-04-01

Question(s) and Reply(ies): Background: QW-151.3(b) states, “For thicknesses over 1 in. (25 mm), multiple specimens shall be cut through the full thickness of the weld with their centers parallel to the metal surface and not over 1 in. (25 mm) apart. The centers of the specimens adjacent to the metal surface shall not exceed 5/8 in. (16 mm) from the surface.”

Question (1): Does the specified distance between specimens of “not over 1 in. apart” refer to the distance between the centers of the specimens? Reply (1): Yes.

Question (2): How many tension tests would be required for a 2 1/2-in. thick groove welding procedure qualification test coupon welded full thickness? Reply (2): Two. See QW-451.1.


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Question (3): When reduced section turned tension test specimens are used in accordance with QW- 462.1(d) for a 2 1/2-in. thick groove welding procedure qualification test coupon welded full thickness, what is the minimum number of specimens that must be removed for each tension test set? Reply (3): Three. Standard Designation: Edition/Addenda:


BPV Section IX


QW-258.1 and QW-410.38, Multiple Layers

Record Number:

BC03-1029

Date Issued:


09/15/2003 IX-04-02

Question(s) and Reply(ies): Background: The electroslag welding process is used to apply a corrosionresistant overlay. The essential variables in QW-258.1 apply. QW-410.38 is listed as an essential variable for corrosion-resistant overlay. Question (1): When a single layer is recorded in the PQR, is a WPS qualified for application of multiple layers? Reply (1): No.

Question (2): When multiple layers are recorded in the PQR, is a WPS qualified for application of single layer? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-403.6, QW-451, and QW-401.3; Notch Toughness Testing

Record Number:

BC03-1246

Date Issued:


09/15/2003 IX-04-04

Question(s) and Reply(ies): Background: A WPS is supported by three PQRs. Two PQRs are recorded on 12-mm and 28.5-mm thick coupons using tensile, bend, and impact testing specimens. A third PQR was made using 5-mm thick plate using the same welding parameters, but only impact specimens were tested. Question (1): May these PQRs be combined to support a WP for welding 2.5 mm through 57 mm material requiring notch toughness testing? Reply (1): No.

Question (2): May these three PQRs be combined to support welding base metal thicknesses of 4.8 mm through 57 mm with or without notch toughness? Reply (2): Yes.


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BPV Section IX


QW-200.2(f) and QW-45 1, Weld Tests

Record Number:

BC03-1583

Date Issued:


12/30/2003 IX-04-05

Question(s) and Reply(ies): Question: Two separate PQRs with identical welding process exist for a 6 mm and an 8 mm base metal thickness. May these PQRs support a WPS, with all the essential and supplementary variables unchanged, to weld a 28mm thick production joint? Reply: No. See QW-451.



BPV Section IX


QB-451.3 and QB-462.l(e), Tension Tests

Record Number:

BC03-1664

Date Issued:


12/30/2003 IX-04-06

Question(s) and Reply(ies): Background: Two tubes under 3 in. in diameter are separately torch brazed into each end of a coupling using face-fed filler in the same position with all the remaining brazing variables the same for both joints. The coupon is pulled to failure which occurs in the weaker of the two brazed joints. The resulting ultimate tensile strength exceeds the minimum specified values listed in QW/QB-422. Question (1): Does one tensile coupon, as shown in QB-462.l(e), brazed in this manner, fulfil the requirement in QB-451.3 for two tension tests? Reply (1): Yes. See QB-463.1(e).

Question (2): Since the same inside diameter, outside diameter, crosssectional area ultimate load, ultimate tensile strength, and type of failure exist for both lap joints, may the same values be recorded for the two tension tests on the Brazing PQR? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-310.1, QW-452.3, and QW-461.9; Position

Record Number:

BC03- 1686

Date Issued:


12/30/2003 IX-04-07

Question(s) and Reply(ies): Question: Does QW-310.1 apply if the pipe coupon is welded in the 6G position?


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Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-200.4, Combination of Welding Procedures

Record Number:

BC03-1770

Date Issued:


04/01/2004 IX-04-08

Question(s) and Reply(ies): Question: A combination weld process PQR was qualified using the GTAW for the root pass, SMAW, and SAW. May this PQR support a WPS for welding with only one or two of the processes shown on the PQR? Reply: Yes, provided the following are met: (a) The remaining essential, nonessential, and supplementary essential variables, when applicable, are applied. (b) The base metal and deposited weld metal thickness limits of QW-451 are applied.



BPV Section IX


QW-403.9, Base Metal Thickness

Record Number:

BC04-065

Date Issued:


04/01/2004 IX-04-09

Question(s) and Reply(ies): Question: An EGW procedure was qualified on 3/8 in. thick base material completing the weld joint in one single pass. Is the WPS qualified to make a weld deposit greater than ½ in., in one pass, in base metal greater than ½ in. in thickness? Reply: No.



BPV Section IX


QW-100.3 and QW-200.2, Procedure Qualification Record Time Limits

Record Number:

BC04-601

Date Issued:


06/10/2004 IX-04-10

Question(s) and Reply(ies): Question: Is there a time limit on the validity of a PQR?

Reply: PQRs always remain valid but may only be used to support WPSs, provided they meet the requirements of the 1962 or later Edition of ASME Boiler and Pressure Vessel Code Section IX. See QW-100.3.


BPV Section IX


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Record Number:


QW-451.1, Procedure Qualification Thickness Limits and Test Specimens and QW-202.4, Dissimilar Base Metal Thicknesses 12/22/2004 BC04-599 IX-04-11

Question(s) and Reply(ies): Question (1): A procedure qualification test coupon using the same P-Number material and consisting of two plates of different thicknesses are welded together, where the thicker of the two plates (T2 = 1-1/2 in. thick) has been tapered on a 4:1 taper down to the thinner plate thickness (T1 = 1 in. thick). Does this test coupon qualify the WPS for a base metal thickness range of 3/16 in. to 8 in.? Reply (1): See Interpretation IX-86-43, Question (2).

Question (2): A procedure qualification test coupon using the same or different P-Number materials and consisting of two plates of different thicknesses, T2 = 1-1/2 in. thick and T1 = 1 in. thick, has been welded with a single process. The thicknesses meet on the same plane with neither plate being tapered. The joint is welded in accordance with Fig. IX-04-11. Does this test coupon qualify the WPS for both base metals for a thickness range of 3/16 in. to 8 in. on both sides of the weld joint? Reply (2): Yes.

Question (3): Does this test coupon qualify the WPS for both base metals of different P-Numbers for a thickness range of 3/16 in. to 8 in.? Reply (3): No. QW-202.4 requires both base metal thicknesses be in accordance with QW-451.1. Base metal T1 is qualified 3/16 in. to 2 in. and base metal T2 is qualified 3/16 in. to 8 in., except as permitted by QW202.4(b)(1). Standard Designation: Edition/Addenda:


BPV Section IX


QW409.1, Electrical Characteristics, Heat Input

Record Number:

BC04-1013

Date Issued:


12/22/2004 IX-04-12

Question(s) and Reply(ies): Question (1): Does QW-409.1 require that the highest heat input, to be recorded on the PQR, be calculated based on the parameters used at the location where the HAZ impact specimens are removed? Reply (1): No.

Question (2): GTAW is a nonconsumable electrode welding process that would record zero for the "per unit length of electrodew in QW-409.1(b). Therefore, can the weld volume method detailed in QW-409.1 be used to control the heat input for a nonconsumable electrode welding process such as GTAW? Reply (2): See Interpretation IX-92-40.


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BPV Section IX


QW-322.2, Renewal of Qualification

Record Number:

BC04- 1457

Date Issued:


12/22/2004 IX-04-13

Question(s) and Reply(ies): Question: A welder has been qualified for the GMAW process (short circuiting transfer mode). The required mechanical bend tests were performed and found to be acceptable. The welder did not weld with this process during the following 6-month period, resulting in expiration of the qualification. May a welder's qualification be renewed by radiographing a production weld performed with the GMAW process (short circuiting transfer mode)? Reply: No. See QW-322.2(a).



Record Number:


BPV Section IX QW-200.2, Procedure Qualification Record and QW-409.1, Electrical Characteristics, Heat Input 12/22/2004

BC04-1592 IX-04-14

Question(s) and Reply(ies): Question (1): Procedure qualification tests were conducted with notch toughness testing. When documenting the PQR with actual variables (amps, volts, travel speed) that were recorded during welding of the test coupon, is it required that a single value be recorded for these variables in the PQR? Reply (1): No. See QW-200.2(b).

Question (2): Must the volts, amps, and travel speed used to calculate heat input for each process per QW-409.1 be measured in the same weld pass or unit length of weld? Reply (2): Yes, Standard Designation: Edition/Addenda:


Record Number:


BPV Section IX QW-403.7, Base Metal Thickness Qualification and QW-407.2, PWHT Temperature and Time Range 12/22/2004

BC04-1595 IX-04-15

Question(s) and Reply(ies): Question (1): Will a procedure qualification test coupon on 1.5 in. thick P-No. 1, Gr. 2 material and postweld heat-treated at 1,100°F for 1.5 hr with


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supplementary essential variable requirements met, support a WPS with supplementary essential variable requirements for production welding on 8 in. thick P-No. 1, Gr. 2 material that is PWHT at 1,100°F for 3.5 hr? Reply (1): No.

Question (2): Based on the conditions stated in Question (I), could the PWHT time on the 8 in. thick weldrnent be increased to 4 hr and 10 min at 1,100°F and still be in compliance with Code requirements? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-403.5, Qualification of Dissimilar Group Number Base Metals

Record Number:

BC04-1418

Date Issued:


03/08/2005 IX-04-16

Question(s) and Reply(ies): Question (1): A PQR is qualified with impact testing using API 5L X56, which is an S-No. 1, Group 2 material. Does that PQR support a WPS for impact-tested welding API 5L X52 and X46 which are S-No. 1, Group 1 materials? Reply (1): No.

Question (2): Does a PQR qualified with impact testing conducted using an unassigned material welded to an S-No. 1, Group 2 material support a WPS for welding the same unassigned material to S-No. 1, Group 1 material? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


QW-409.8, QW-256, SFA Specifications, GTAW Electrode Characteristics

Record Number:

BC05-024

Date Issued:


03/08/2005 IX-04-17

Question(s) and Reply(ies): Question: May current levels outside the range of SFA 5.12 Table A1 for specific tungsten electrode diameters be specified in a WPS in accordance with Section IX? Reply: Yes.



BPV Section IX QW-200.4(b), Combining Procedure Qualification Records 03/08/2005


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Record Number:


BC05-025 IX-04-18

Question(s) and Reply(ies): Background: A combination GTAW and SMAW WPS is supported by two PQRs. PQR A is welded with SMAW to join 1-1/2 in. (38 mm) thick plates with 1-1/2 in. (38 mm) of SMAW deposit. PQR B is welded with GTAW and SMAW to join 1/2 in. (13 mm) thick plates, with 1/8 in. (3 mm) of GTAW deposit, and 3/8 in. (10 mm) of SMAW deposit. Question (1): Do PQRs A and B qualify the combination WPS for a base metal thickness range of 3/16 in. (5 mm) to 8 in. (200 mm) when impact testing is not required? Reply (1): Yes.

Question (2): Do PQRs A and B qualify the combination WPS for a maximum deposited weld metal thickness of 1/4 in. (6 mm) for the GTAW process and 8 in. (200 mm) for the SMAW process? Reply (2): Yes.

Question (3): When impact tests are performed for both PQRs with acceptable results, do PQRs A and B qualify the combination WPS for a base metal thickness range of 1/2 in. (13 mm) to 8 in. (200 mm) when impact testing is required? Reply (3): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


QW-404.36, Filler Metals, Testing of Recrushed Slag

Record Number:

BC05-026

Date Issued:


03/08/2005 IX-04-19

Question(s) and Reply(ies): Question: Does QW-404.36 require that each batch or blend of recrushed slag, as defined in SFA-5.17, be tested in accordance with Section II, Part C regardless of the source of slag? Reply: Yes.



BPV Section IX


Section IX, QW-403.1, Base Metals

Record Number:

BC95-194

Date Issued:


03/19/1996 IX-95-24

Question(s) and Reply(ies): Question: Does a WPS qualified, using P-No. 1 Group No. 1 material, qualify for welding P-No. 1 Group No. 2 material when notch toughness tests are not required?


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Reply: Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-201, Manufacturer's or Contractor's Responsibility

Record Number:

BC95-252

Date Issued:


03/19/1996 IX-95-25

Question(s) and Reply(ies): Question: If company A purchases company B, is it permissible for company A to write Welding Procedure Specifications (WPS) in their name supported by Procedure Qualification Records (PQR) qualified by company B? Reply: Yes.



BPV Section IX



Record Number:

BC95-303

Date Issued:


03/19/1996 IX-95-26

Question(s) and Reply(ies): Background: Company A owns company B and changes its name to C. The new company C continues to use the WPSs and PQRs initially developed by B. After some time company A (the parent company) splits C back to B and C. Both B and C now operate independently but under company A. Question: May company B use the WPSs and PQRs initially developed by B and also use WPSs and PQRs qualified by company C before the last reorganization? Reply: Yes, provided that the requirements of QW-201 are satisfied. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC95-482

Date Issued:


03/19/1996 IX-95-27

Question(s) and Reply(ies): Question: May a subcontractor use a WPS supported by a PQR which was qualified by the contracting company and subsequently supplied to the subcontractor? Reply: No.


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BPV Section IX


Section IX, QW-403.10, Short Circuiting Mode

Record Number:

BC96-002

Date Issued:


03/19/1996 IX-95-28

Question(s) and Reply(ies): Question: Are the base metal thickness restrictions for the GMAW process short circuiting mode stated in QW-403.10 and QW-404.32 also applicable to fillet weld tests, either in procedure qualifications (QW-451.3, QW451.4) or in performance qualifications (QW-452.4, QW-452.5, and QW452.6)? Reply: No.



BPV Section IX



Record Number:

BC95-302

Date Issued:


05/30/1996 IX-95-29

Question(s) and Reply(ies): Question: If more than one manufacturer or contractor agrees upon the use of one WPS, which is to be followed during production of test weldments for qualification testing, may the welder used to produce the weldments to be tested for qualification of procedures be under the full supervision and control of each manufacturer or contractor during the welding, provided the Quality Control System or Quality Assurance Program of each manufacturer or contractor describes the control of welders? Reply: Yes.



BPV Section IX


Section IX, QW-350, Welding Variables for Welders

Record Number:

BC96-073

Date Issued:


05/30/1996 IX-95-30

Question(s) and Reply(ies): Question (1): Do the essential variables of QW-350 apply to welding operators carrying out corrosion resistant overlay? Reply (1): No.

Question (2): Are welding operators qualified for submerged arc welding also qualified for Electroslag welding and vice versa? . Reply (2): No.


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Question (3): Is a welding operator qualified to QW-360 and QW-381 of Section IX in submerged arc weld overlay using wire electrode also qualified to use strip electrodes with the same process? Reply (3): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-361.2, Essential Variables -- Machine Welding

Record Number:

BC96-141

Date Issued:


05/30/1996 IX-95-31

Question(s) and Reply(ies): Background: A welding operator has direct visual contact with a pipe weldment that is being welded utilizing machine orbital pipe welding equipment. This welding operator is giving verbal commands to a second welding operator, who does not have eye contact with the weldment and who is positioning the weld head and wire aimers located on the head, remotely, during the welding of the joint in accordance with the verbal commands of the first operator. Each welding operator has been qualified to perform both remote and direct visual control welding. Question: Are these welders qualified to make the subject weld in accordance with QW-361.2 even though the welding operator having direct visual control is directing the positioning of the orbital pipe welding equipment verbally and does not have "hands-on" control of the welding head? Reply: Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-300.2, Welding Performance Qualifications

Record Number:

BC95-302

Date Issued:


07/01/1996 IX-95-32

Question(s) and Reply(ies): Question: If more than one manufacturer or contractor agrees upon the use of one WPS, which is to be followed during production of test weldments for qualification testing, may the welder used to produce the weldments to be tested for qualification of procedures be under the full supervision and control of each manufacturer or contractor during the welding, provided the Quality Control System or Quality Assurance Program of each manufacturer or contractor describes the control of welders? Reply: Yes.


BPV Section IX



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Section IX, QW-403.10, Short-Circuiting Mode

Record Number:

BC96-001

Date Issued:


09/24/1996 IX-95-33

Question(s) and Reply(ies): Question: Does QW-403.10 limit the base metal thickness qualified to 1.1T for a combination GMAW-S/SMAW PQR test coupon thickness "T" less than ½ in. when used to support a combination GMAW-S/SMAW WPS? Reply: Yes.



BPV Section IX


Section IX, QW-202.3, Weld Repair and Buildup

Record Number:

BC96-060

Date Issued:


09/24/1996 IX-95-34

Question(s) and Reply(ies): Background: Assurance of defect-free hardfacing deposits on cast surfaces is often improved if a layer of weld metal is first deposited on the casting, acting as a substrate for the subsequent hardfacing weld metal overlay.

Question (1): Does Section IX require qualification of the substrate (e.g., in accordance with QW-202.3 or when the substrate is not included in the design minimum wall thickness in accordance with QW-214) which will be subsequently covered by a hardfacing weld metal overlay? Reply (1): Yes.

Question (2): If the deposit of the substrate is included in a hardfacing weld metal overlay procedure qualified to QW-216, is evaluation of the substrate to QW-202.3 or QW-214, as applicable, required? Reply (2): Section IX does not address qualification of a combination substrate/hardfacing WPS in a single coupon. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-300.1, Welding Performance Qualifications

Record Number:

BC96-287

Date Issued:


09/24/1996 IX-95-35

Question(s) and Reply(ies): Question: Is it permissible to use ultrasonic examination in lieu of radiography to qualify welders and welding operators in accordance with QW-300.1? Reply: No.

Standard Designation:

BPV Section IX


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Edition/Addenda:


Section IX, QW-300, Welding Performance Qualifications

Record Number:

BC96-314

Date Issued:


09/24/1996 IX-95-36

Question(s) and Reply(ies): Question (1): Would the successful qualification of a welder in a manual or semiautomatic method qualify him to weld in production using a machine or automatic method in the same process? Reply (1): No.

Question (2): Since the essential variables are the same for both methods, would successful qualification with testing in manual GTAW allow the same welder to weld in production using semiautomatic GTAW without testing? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-404.9, Filler Metals

Record Number:

BC96-315

Date Issued:


09/24/1996 IX-95-37

Question(s) and Reply(ies): Question: In accordance with QW-404.9(c), does a change in the wire classification shown in SFA 5.9, with no change in the flux composition, F-Number, or A-Number, require procedure requalification? Reply: No.



BPV Section IX


Section IX, QW-322, Expiration and Renewal of Qualification

Record Number:

BC96-132

Date Issued:


01/06/1997 IX-95-38

Question(s) and Reply(ies): Question: Is it a requirement of QW-322 for a manufacturer to maintain records to demonstrate a welder's or welding operator's continuing qualification for a process from the date of the original qualification test?

Reply: Section IX does not address how conformance to QW-322 is demonstrated. Other book sections may address the maintenance of records.


BPV Section IX


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Section IX, QW-304, Performance Qualification -- Welders

Record Number:

BC96-331

Date Issued:


01/06/1997 IX-95-39

Question(s) and Reply(ies): Question (1): Would the successful performance qualification of a welder in a manual or semi-automatic type (e.g,. GMAW, GTAW, SAW) per QW304 qualify the same welder to operate as welding operator in machine or automatic type welding? Reply (1): No.

Question (2): If a welder used GMAW (short-circuiting mode) for the root pass and SAW for the hot and fill passes of test coupon, may the test coupon be testing using radiography for the SAW portion of the weld in accordance with QW-304 and QW-306? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC93-431 and BC95-222

Date Issued:


01/21/1997 IX-95-40

Question(s) and Reply(ies): Background: Company A was a subsidiary of Company B. Company B sold Company A to Company C, and Company A became a division of Company C. Question: May Company A continue to use WPSs and PQRs previously developed by Company B?

Reply: It is the intent of the Code that when a manufacturer or contractor, or part of a manufacturer or contractor, is acquired by a new owner(s), the PQRs and WPSs may be used by the new owner(s) without requalification, provided all of the following are met: (a) the new owner(s) takes responsibility for the WPSs and PQRs; (b) the WPSs reflect the name of the new owner(s); and (c) the Quality Control System/Quality Assurance Program reflects the source of the PQRs as being from the former manufacturer or contractor. Standard Designation: Edition/Addenda:


Record Number:

BPV Section IX Section IX, QW-453, Procedure/Performance Qualification Thickness Limits and Test Specimens for Hardfacing (Wear-Resistant) and CorrosionResistant Overlays 03/06/1997 BC97-028


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IX-95-41

Question(s) and Reply(ies): Background: Corrosion-resistant weld overlay on P-No. 1 material needs to be carried out with Nickel-Aluminum Bronze using E CuNiAl SMAW electrode (F-No. 37) and ER CuNiAl GMAW filler wire (F-No. 37).

Question: For procedure qualification of the above to QW-453, can side bend test specimens of 1/8 in. thickness be used, bent to inner diameter of 2 1/16 in., as given for P-No. XX with F-No. 36 under QW466.1? Reply: No.



BPV Section IX


Section IX, QW-284, Seam Welding Equipment Qualification

Record Number:

BC97-044

Date Issued:


05/20/1997 IX-95-42

Question(s) and Reply(ies): Background: When qualifying resistance seam welding equipment for QW284, testing and acceptance criteria shall be in accordance with QW-196. QW-196.2.1 addresses shear test specimens but only deals with spot welding. Question (1): When qualifying seam welding equipment, do the requirements for spot shear test per QW-196.2.1 apply? Reply (1): No.

Question (2): Do the rules of QW-286 for procedures qualification apply for equipment qualification? Reply (2): No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QB-141.4, Sectioning Tests

Record Number:

BC97-304

Date Issued:


12/15/1997 IX-98-01

Question(s) and Reply(ies): Question: In QB-451.3, Note (1), is the Sectioning Test a substitute for the Peel Test? Reply: Yes.



BPV Section IX Section IX, QW-201, Manufacturer's or Contractor's Responsibility


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Date Issued:

12/15/1997


IX-98-02

Record Number:

BC97-309

Question(s) and Reply(ies): Question: May a manufacturer use another organization's Welding Procedure Specifications in fabrication of pressure vessels contracted to that organization if the manufacturer works to specifications controlling all fabrication processes from material procurement to final delivery including QC examination provided by the contracting organization? Reply: No.



Record Number:


BPV Section IX Section IX, QW-451. Procedure Qualification Thickness Limits and Test Specimens 12/15/1997 BC97-479 IX-98-03

Question(s) and Reply(ies): Question: Does a partial penetration groove weld procedure qualification test assembly qualify for full penetration production groove welds within the ranges indicated in QW451? Reply: Yes.



BPV Section IX


Section IX, QW-200.2, Welding Procedure Qualifications

Record Number:

BC97-481

Date Issued:


12/15/1997 IX-98-04

Question(s) and Reply(ies): Question: Does ASME Section IX require that a preliminary WPS be attached to the PQR? Reply: No.



Record Number:



BPV Section IX Section IX, QW453, Procedure/Performance Qualification Thickness Limits and Test Specimens for Hardfacing (Wear-Resistant) and CorrosionResistant Overlays 04/28/1998 BC98-009 IX-98-05


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Question: In making repairs to hardfacing weld metal overlays, does the existing hardfacing weld metal overlay deposit to be repaired constitute a change in the original essential variable(s) (e.g., base material, thickness, etc.) thus requiring a new qualification. Reply: No. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-402.12(a) and (c) and QW-402.14, Joints

Record Number:

BC98-009

Date Issued:


04/28/1998 IX-98-06

Question(s) and Reply(ies): Question: Do the words "any change exceeding +10%," "change... greater than 10%," "a change ... greater than +10%," and "an increase or decrease of more than 10%," respectively, all indicate a qualified range of 10% above and 10% below the value recorded on the PQR? Reply: Yes.



BPV Section IX


Section IX, QW-410.42, Technique

Record Number:

BC98-009

Date Issued:


04/28/1998 IX-98-07

Question(s) and Reply(ies): Question (1): For PAW hardfacing and corrosion resistant weld metal overlay qualifications, may the full range of oscillation qualified (including the "change of more than 10%") also apply to the combined minimum and maximum oscillation range qualified? (e.g.. would the range qualified for a 1 in. oscillation combined with a 1.5 in. oscillation be 0.9 in.-1.65 in.) Reply (1): Yes.

Question (2): May the minimum and maximum oscillation values be combined and qualified on a single hardfacing weld metal overlay test coupon assuming all other essential variables are the same?

Reply (2): Section IX does not prohibit the qualification of more than one set of essential variables on a single test coupon, provided each set of essential variables is tested in accordance with the requirements of Section IX. Standard Designation: Edition/Addenda:


BPV Section IX Section IX, QW-432, F-Numbers


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Date Issued:

04/28/1998


IX-98-08

Record Number:

BC98-131

Question(s) and Reply(ies): Question: A WPS is qualified with an SMA electrode that is not certified by the manufacturer as conforming to an AWS classification. Are welders who were previously qualified with an electrode classified as F4, also qualified to use this unclassified electrode that conforms to the deposit chemistry of EXXXX-G, in Table 2 of SFA 5.5 (within the other limitations of QW350)? Reply: No.



Record Number:


BPV Section IX Section IX, QW-150 and QW-462.1, Tension Test Specimens for Pipe and Plate 10/09/1998 BC97-302 IX-98-09

Question(s) and Reply(ies): Question: Would tensile tests performed in accordance with SA-370 be acceptable for meeting ASME Section IX, QW-462.1(a) and (b)? Reply: No.



BPV Section IX


Section IX, QW-407.1, Post Weld Heat Treatment

Record Number:

BC97-306/BC97-308

Date Issued:


10/09/1998 IX-98-10

Question(s) and Reply(ies): Question: Is it the intent of Section IX in QW-407.1 to permit reporting the results of more than one PWHT condition on a single report, with a single PQR number, provided all other applicable essential and supplementary essential variables are identical and all required tests are conducted and reported for both conditions? Reply: Yes.



BPV Section IX


Section IX, QW-300, Welding Performance Qualifications

Record Number:

BC98-133

Date Issued:


10/09/1998 IX-98-11


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Question(s) and Reply(ies): Question: May Company A retain the Company B employee responsible for welder performance qualification to review the welder qualification documents of both companies and qualify the welders of Company B to the welding program of Company A without further testing of the welders? Reply: No.



Record Number:


BPV Section IX Section IX, QW-451, Procedure Qualification Thickness Limits and Test Specimens 10/09/1998

BC98-237/BC98-238 IX-98-12

Question(s) and Reply(ies): Question: May longitudinal bend specimens be used in lieu of transverse bend specimens when the base metals or the base metal and the weld metal do not differ markedly in bending properties? Reply: No.



BPV Section IX


Section IX, QW-200.1, Welding Procedure Qualifications

Record Number:

BC98-239

Date Issued:


12/22/1998 IX-98-13

Question(s) and Reply(ies): Question: Are all-encompassing terms acceptable when addressing nonessential variables in a WPS (e.g., for backing, "with or without," for root spacing, "unlimited")? Reply: Section IX does not specify how nonessential variables are to be addressed; however, the terms used must provide direction to the welder/welding operator for making production welds to Code requirements.



Record Number:


BPV Section IX Section IX, QW-361.2, Machine Welding Variables for Welding Operators; and QW-381, Corrosion-Resistant Weld Metal Overlay 12/22/1998 BC98-447 IX-98-14

Question(s) and Reply(ies): Background: A multiple layer corrosion-resistant weld metal overlay performance qualification (machine welding) is made with the first layer under Direct Visual control and the second layer Remote Visual control.


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Question (1): Is the welding operator qualified for both Direct and Remote Visual control techniques applied either in single or multiple layers? Reply (1): Yes.

Question (2): For the qualification described in the background, may two welding operators qualify on one coupon, provided the requirements of QW-453 and QW-361.2 (which delineate the welding operators "limits of qualification" as per QW-306) are addressed? Reply (2): Yes. Standard Designation: Edition/Addenda:


BPV Section IX


Section IX, QW-405.3, Positions

Record Number:

BC98-448

Date Issued:


12/22/1998 IX-98-15

Question(s) and Reply(ies): Question: May a single-pass "seal weld" as defined in QW-492, used to seal boiler tubes to a boiler tube sheet, be considered a "cover pass" or a "wash pass" for purposes of exemption from QW-405.3? Reply: No.



Record Number:


BPV Section IX Section IX, QW-462.5(a), Chemical Analysis and Hardness Specimen Corrosion-Resistant and Hardfacing Weld Metal Overlay 12/22/1998 BC98-453 IX-98-16

Question(s) and Reply(ies): Question: Is it permissible to use the surface of the test coupon as the "approximate fusion line" when determining the minimum finished thickness for corrosion-resistant and hardfacing overlays in accordance with QW-462.5(a)? Reply: Yes.



Record Number:


BPV Section IX Section IX, QW-453, Procedure/Performance Qualification Thickness Limits and Test Specimens for Hard-Facing (Wear Resistant) and Corrosion-Resistant Overlays 03/23/1999 BC98-055 IX-98-17


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Question(s) and Reply(ies): Question: When performing corrosion-resistant weld metal overlay welding operator qualification using a machine GTAW process, are the limitations on thicknesses qualified per QW-453 applicable? Reply: Yes.



BPV Section IX


Section IX, QW-201.1, Manufacturer's or Contractor's Responsibility

Record Number:

BC99-025

Date Issued:


03/23/1999 IX-98-18

Question(s) and Reply(ies): Background: When one of a company's plants is sold, it is not clear if the new owner can use the Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR) qualified by the original company, when the original company wishes to continue using those WPS/PQR. Question: Company A sells one of its plants to Company B. May both Company A and Company B use the WPSs/PQRs previously qualified by Company A? Reply: Yes, provided the requirements of QW-201.1 are addressed by Company B. Standard Designation: Edition/Addenda:


BPV Section IX


QW-404, Filler Metals

Record Number:

BC99-409

Date Issued:


09/24/1999 IX-98-19

Question(s) and Reply(ies): Question: Is requalification required when the filler metal specified in the WPS and supporting PQR is moved from one SFA specification to another SFA specification, or the AWS classification is changed, or when a previously unclassified filler is classified by the filler metal manufacturer as conforming to an SFA specification? Reply: No.



BPV Section IX



Record Number:

BC99-539

Date Issued:



06/08/2000 IX-98-20


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Question: When welding a corner joint with dissimilar base metal thickness, the thickness of both members must be within the qualified thickness range of the WPS(s) being used. How is the thickness for the thicker member defined in sketches (a), (b), and (c) below? Reply: For sketch (a), the thicker of T or tS. For sketch (b), the thicker of T or ta. For sketch (c), the thicker of flange a or hub b. Standard Designation: Edition/Addenda:


BPV Section IX



Record Number:

BC99-539*

Date Issued:


06/08/2000 IX-98-20R

Question(s) and Reply(ies): Question: When welding a corner joint with dissimilar base metal thickness, the thickness of both members must be within the qualified thickness range of the WPS(s) being used. How is the thickness for the thicker member defined in sketches (a), (b), and (c) below? Reply: For sketch (a), the thicker of T or tS . For sketch (b), the thicker of T or tS. For sketch (c), the thicker of flange a or hub b.



BPV Section IX


QW-403.5, Base Metals

Record Number:

BC00-470

Date Issued:


06/04/2001 IX-92-70R

Question(s) and Reply(ies): Question (1): When a procedure qualification with supplemental notch toughness requirement is conducted with one P-Number material having multiple certifications in different Group Numbers, are WPSs qualified for all combinations of the Group Numbers? Reply (1): Yes.

Question (2): In the above question, does one set of HAZ impact specimens, when required, satisfy the requirements of Section IX? Reply (2): Yes.

Question (3): When a procedure qualification with supplemental notch toughness requirement is conducted with two materials of different P-Number each having multiple certifications in different Group Numbers, are WPSs qualified for all combinations of the multiple certified Group Number of the first P-Number material to the multiple certified Group Number of the second P-Number material? Reply (3): Yes.


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Question (4): In the above question, does one set of HAZ impact specimens from each P-Number material, when required, satisfy the requirement of Section IX? Reply (4): Yes.

Question (5): In Question (3), are materials from the multiple certified Group Numbers qualified for welding a P-Number material to itself?. Reply (5): No.

Note: The term "multiple certifications" as used means any material for which a material test report indicates that the material meets all the requirements of two or more specifications, grades, types, or classes. Copyright © 2016 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME


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ASME IX Interpretation-Part10

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