Designation: A961/A961M − 16a
Standard Specification for
Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications 1 This standard is issued under the fixed designation A961/A961M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Sco Scope* pe*
the tables, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply, unless the “M” designation (SI) of the product specification is specified in the order.
1.1 This specification specification covers a grou group p of commo common n requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications under any of the following individual product specifications: Title of Specification
ASTM Designation
Forgings, Carbon Steel, for Piping Components Forgings, Components Forgings, Carbon Steel, for General-Purpose Piping Forged or Rolled Alloy-Steel Alloy-Steel Pipe Flange Flanges, s, Forged Fittings, and Valves and Parts for High Temperature Service Forgings, Carbon and Low Alloy Steel, Requiring Notch Toughness Testing for Piping Components Forged or Rolled 8 and 9 % Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service Forgings, Carbon and Alloy Steel, for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service Flanges, Forged, Carbon and Alloy Steel for Low Temperature Service Forgings, Forgin gs, Carbon Steel, for Piping Components Components with Inherent Notch Toughness Forgings, Titanium-Stabilized Carbon Steel, for Glass-Lined Piping and Pressure Vessel Service
A105/A105M A181/A181M A182/A182M
2. Referenc Referenced ed Documents 2.1 ASTM Standards: 2 A105/A105M Specifi Specification cation for Carbon Steel Forg Forgings ings for Piping Applications A181/A181M Specification for Carbon Steel Forgings, for A181/A181M General-Purpose Piping A182/A182M Specification A182/A182M Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service A275/A275M Practice A275/A275M Practice for Magnetic Particle Examination of Steel Forgings A350/A350M Specification A350/A350M Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components A370 Test A370 Test Methods and Definitions for Mechanical Testing of Steel Products A522/A522M Specification A522/A522M Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service A694/A694M Sp Spec ecific ificati ation on fo forr Ca Carb rbon on an and d Al Alloy loy St Steel eel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service A700 Guide A700 Guide for Packag Packaging, ing, Marking, and Loadin Loading g Metho Methods ds for Steel Products for Shipment A707/A707M Spe Specifi cificati cation on for For Forged ged Car Carbon bon and Allo Alloy y Steel Flanges for Low-Temperature Service A727/A727M Specifi Specification cation for Carbon Steel Forg Forgings ings for Piping Components with Inherent Notch Toughness A751 Test A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A350/A350M A522/A522M
A694/A694M
A707/A707M A727/A727M A836/A836M
1.2 In case of conflict conflict bet betwee ween n a req requir uiremen ementt of the ind indiividual product specification and a requirement of this general requirement specification, the requirements of the individual product specification shall prevail over those of this specification. 1.3 By mut mutual ual agreement agreement between between the pur purcha chaser ser and the supplier, additional requirements may be specified (see Section 4.1.2). 4.1.2 ). The acce accepta ptance nce of any suc such h add additio itional nal req requir uireme ements nts shall be dependent on negotiations with the supplier and must be included in the order as agreed upon between the purchaser and supplier. 1.4 The values stated in either SI units or inch-pound inch-pound units are to be regarded separately as standard. Within the text and
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This specification is under the jurisdiction of ASTM Committee A01 A01 on on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.22 on A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications. Current edition approved Dec. 1, 2016. Published December 2016. Originally approved in 1996. Last previous edition approved in 2016 as A961/A961M – 16. DOI: 10.1520/A0961_A0961M-16A.
2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at
[email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A961/A961M − 16a A836/A836M Specification for Titanium-Stabilized Carbon A836/A836M Steel Forgings for Glass-Lined Piping and Pressure Vessel Service A941 Terminology A941 Terminology Relating to Steel, Stainless Steel, Related Alloys,, and Ferro Alloys Ferroalloys alloys A967/A967M Specification A967/A967M Specification for Chemical Passivation Treatments for Stainless Steel Parts A991/A991M Test Meth Method od for Con Conduc ducting ting Temp emperat erature ure Uniformity Surveys of Furnaces Used to Heat Treat Steel Products A1058 Tes estt Me Meth thod odss fo forr Me Mech chan anic ical al Tes esti ting ng of St Stee eell Products—Metric B880 Specification B880 Specification for General Requirements for Chemical Check Che ck Analysis Analysis Limi Limits ts for Nic Nickel kel,, Nic Nickel kel Alloys Alloys and Cobalt Alloys E165/E165M Practice E165/E165M Practice for Liquid Penetrant Penetrant Examin Examination ation for General Industry E381 Met Method hod of Mac Macroe roetch tch Test esting ing Ste Steel el Bars Bars,, Bill Billets, ets, Blooms, and Forgings E709 Guide E709 Guide for Magnetic Particle Testing E1916 Guide E1916 Guide for Identification of Mixed Lots of Metals
3.2.6 seamless tubing, n— a tubular product made without a welded seam. 3.2.6.1 Discussion— It It is manufactured usually by hot working in g th thee ma mater teria ial, l, an and d if ne nece cess ssar ary y, by su subs bseq eque uent ntly ly co cold ld finishing the hot worked tubular product to produce the desired shape, dimensions and prope properties. rties. 4. Order Ordering ing Information Information 4.1 4. 1 It is th thee pu purc rcha haser ser’s ’s re resp spon onsi sibi bilit lity y to sp speci ecify fy in th thee purchase order all ordering information necessary to purchase the needed material. Examples of such information include, but are not limited to, the following: 4.1.1 Quant Quantity ity,, 4.1.2 Size and pressure class or dimensions, dimensions, (tolerances (tolerances and surface finishes should be included), 4.1.3 Specifi Specification cation number number with grade or class, or both, as applicable, applic able, and year/d year/date, ate, 4.1.4 Choice of testing track from from the options listed in Test Test Methods A1058 Methods A1058 when material is ordered to an M suffix (SI units un its)) pr prod oduc uctt st stan anda dard rd.. If th thee ch choi oice ce of tes testt tr track ack is no nott specified in the order, then the default ASTM track shall be used as noted in Test Methods A1058 A1058,, 4.1.5 Supp Supplementar lementary y requir requirements ements,, and 4.1.6 Additi Additional onal requirements. requirements.
2.2 ASME Standard:3 ASME Boiler and Pressure Vessel Code–Section IX 2.3 Manufacturer’s Standardization Society Standard:4 SP 25 Standard Marking System of Valves, Fittings, Flanges and Unions
5. Melt Melting ing Process Process
3. Terminology
5.1 Unl Unless ess oth otherw erwise ise spe specifi cified ed in the ind individ ividual ual Pro Produc ductt Specification, the steel shall be fully killed.
3.1 Definitions— For For definitions of other terms used in this specification, refer to Terminology A941 A941..
5.2 If a specific type of melting is required required by the purchaser purchaser,, it shall be stated on the purchase order.
3.2 Definitions of Terms Specific to This Standard: 3.2.1 bar, n— a solid rolled or forged section that is long in relationship to its cross sectional dimensions, with a relatively consta con stant nt cro cross ss sect section ion thr throug oughou houtt its len length gth and a wro wrough ughtt microstructure.
5.3 The primary melting may incorp incorporate orate separate degassing or refining and may be followed by secondary melting, such as electroslag remelting or vacuum remelting. If secondary melting is employed, the heat shall be defined as all of the ingot remelted from a single primary heat.
organiza ganization, tion, n— the 3.2.2 certifying or the com compan pany y or ass associ ociaation responsible for the conformance of, the marking of, and the cer certific tificatio ation n of the pro produc ductt to the spe specific cificatio ation n req requir uireements.
5.4 Steel may be cast in ingots ingots or may be strand cast. cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The steel producer shall remove the transition material by an established procedure that positively separates the grades.
3.2.3 fitting, n— a component for non-bolted joints in piping systems.
5.5 A su 5.5 sufffici icien entt di disc scar ard d sh shall all be made made fr from om th thee so sour urce ce materi mat erial al to sec secur uree fr freed eedom om fro from m inj injuri uriou ouss por poros osity ity and shrinkage, and undue segregation.
flange,, n— a co 3.2.4 flange comp mpon onen entt fo forr bo bolte lted d jo join ints ts us used ed in piping systems.
3.2.5 forging, n— the the product of a substantially compressive hot or col cold d pla plastic stic wor workin king g ope operati ration on tha thatt con consol solida idates tes the material and produces the required shape. 3.2.5.1 Discussion— The The plastic working must be performed by a forging machine, such as a hammer, press, or ring rolling machine, and must deform the material to produce a wrought structure throughout the material cross section.
6. Manuf Manufactu acture re 6.1 The finished part shall be manufactured manufactured from a forging that is as close as practicable to the finished size or shape. Alter Al terna nativ tivee sta start rtin ing g ma mater terial ialss ma may y be us used ed,, bu butt wit with h th thee following exceptions and requirements. 6.1.1 Bar— Flanges, Flanges, elbows, return bends, tees, and header tees shall not be mac machin hined ed dir directl ectly y fro from m bar bar.. Oth Other er hol hollow low cylindrical shaped parts up to, and including, NPS 4 can be machined from bar provided that the axial length of the part is approximately parallel to the metal flow lines of the starting stock. 6.1.2 Wrought Seamless Pipe and Tubing— Flanges Flanges shall not be mac machin hined ed dir directl ectly y fro from m sea seamles mlesss pip pipee or tub tubing ing.. Oth Other er
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Availab Av ailable le from American Socie Society ty of Mech Mechanica anicall Engin Engineers eers (ASME (ASME), ), ASME Internationall Headq Internationa Headquarte uarters, rs, Two Park Ave., Ave., New York, NY 1001610016-5990, 5990, http:// www.asme.org. 4 Available from Manufacturers Standardization Society of the Valve and Fittings Industry Indust ry (MSS (MSS), ), 127 Park St., NE, Vienna, VA VA 22180 22180-4602, -4602, http://www.mss http://www.mss-hq.com.
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A961/A961M − 16a hollow cylindrical shaped parts can be machined from seamless pipe and tubing provided that the axial length of the part is approximately parallel to the metal flow lines of the starting stock.
the ind indivi ividua duall pro produc ductt spe specific cificatio ation. n. Not Notee tha thatt the pro produc ductt analysis analys is (check analysis) tolerances tolerances are not to be applie applied d to the Heat Analysis requirements. 8.3 Product Analysis— If If a product analysis is performed it shall sha ll be in acco accorda rdance nce with Test Test Met Method hods, s, Pra Practic ctices, es, and Terminology A751. A751. Samples for analysis shall be taken from midway mid way bet betwee ween n cen center ter and sur surfac facee of sol solid id par parts, ts, mid midway way betwee bet ween n inn inner er and out outer er sur surfac faces es of hol hollow low par parts, ts, mid midway way between center and surface of full-size prolongations or from broken mechanical test specimens. The chemical composition thuss det thu determ ermine ined d sha shall ll con confor form m to the limi limits ts of the product product specification, within the permissible variations of Table Table 1 or Table 2 of 2 of this specification, specification, as appro appropriate priate for the grade being supplied.
7. Heat Treatment Treatment 7.1 Material Material req requir uiring ing hea heatt trea treatmen tmentt sha shall ll be trea treated ted as specified specifie d in the ind individ ividual ual pro produc ductt spe specific cificatio ation n usi using ng the following procedures that are defined in more detail in Terminology A941 nology A941.. 7.1.1 Annealing— Material Material shall be uniformly reheated to a temperature tempera ture above the transformation transformation range and, after holdi holding ng for a suf suffficie icient nt time at thi thiss temp tempera eratur ture, e, coo cooled led slo slowly wly to a temperature tempera ture below the transf transformati ormation on range range.. 7.1.2 Solution Annealing (or Solution Treat or Treatment)— Mater Ma teria iall sh shall all be he heate ated d to a te temp mper erat atur uree th that at ca caus uses es th thee chrome chr ome carbides carbides to go int into o sol solutio ution, n, and then, que quench nched ed in wate wa terr or ra rapi pidl dly y co cool oled ed by ot othe herr me mean anss to pr prev even entt re re-precipitation. 7.1.3 Isothermal Annealing— Isotherm Isothermal al anne annealing aling shall consist of austenitizing a ferrous alloy, and then, cooling to and holding within the range of temperature at which the austenite transforms to a relatively soft ferrite-carbide aggregate. 7.1.4 Normalizing— Material Material shall be uniformly reheated to a te temp mper erat atur uree ab abov ovee th thee tr tran ansf sfor orma mati tion on ra rang nge, e, an and d subsequently, cooled in air at room temperature. Tempering and Post-W P ost-Weld eld Heat Tr Treatment— eatment— Material 7.1.5 Tempering Material shall sha ll be reh reheat eated ed to the pre prescr scribe ibed d temp temperat erature ure bel below ow the transformation range, held at temperature for the greater of 30 min or 1 h/in. [25.4 mm] of thickness at the thickest section and cooled in still air. 7.1.6 Stress Relieving— Material Material shall be uniformly heated to the selected stress relieving temperature, held long enough to reduce stresses and then cooled at a rate that will result in the proper pro perties ties req requir uired ed for the mate materia riall gra grade de and min minimiz imizee the development of new residual stresses. The temperature shall not vary from the selected temperature by more than 625 °F [614 °C]. 7.1.7 Quench and Temper— Material Material shall be fully austenitized and quenched immediately in a suitable liquid medium. The quenched fittings shall be reheated to a minimum temperature of 1100 °F [590 °C] and cooled in still air. 7.1.8 Same Heat Treat Cycle— Heat Heat treat loads at the same tempera temp eratur ture, e, equ equiva ivalen lentt soa soak k time timess as app approp ropria riate te for the maximum section size on the respective load and equivalent cooling methods.
9. Mechanical Requirement Requirementss Method of Mecha Mechanical nical Tests— All 9.1 Method A ll tes tests ts sh shal alll be co connducted in accordance with Test Methods and Definitions A370 if the inch-pound units are specified or Test Methods A1058 A1058 if if the M suffix (SI units) is specified.
9.2 For the pur purpos posee of det determ ermini ining ng con confor forman mance ce to the productt spe produc specifi cificati cation on req requir uireme ements nts,, spe specim cimens ens sha shall ll be obtained from the production forgings, or from separately forged test blanks prepared from the stock used to make the finished product. In either case, mechanical test specimens shall not be removed until after all heat treatment is complete. If repair weldin wel ding g is per perfor formed med,, test spe specime cimens ns sha shall ll not be rem remove oved d until after post-weld heat treatme treatment nt is complete, unless permit permit-ted by the product specification. The locations from which test specimens are removed shall be in accordance with the Product Specification. 9.3 If separately separately forged forged test blanks are used, used, they shall be of the same heat of steel, be subjected to substantially the same reduc red uctio tion n an and d wo work rking ing as the pr prod oduc uctio tion n fo forg rging ing the they y represent, be heat treated in the same furnace charge except as provided for in the reduced testing provisions of the product specifi spe cificati cation, on, und under er the sam samee con conditi ditions ons as the pro produc ductio tion n forging, and be of the same nominal thickness as the maximum heat treated thickness of the production forging. 9.4 When parts are machined machined from bar or seamless tubing, as permitted in 6.1.1 in 6.1.1 and and 6.1.2 6.1.2,, the mechanical properties may be determined for the parts from the starting material, if the part pa rtss ha have ve no nott be been en su subj bject ected ed to an any y su subs bseq eque uent nt th ther erma mall processing since the time of mechanical test. 10. Hardness Requirements Requirements
8. Chemical Requirement Requirementss
10.1 The part shall confo conform rm to the hardness requiremen requirements ts prescribed in the product specification.
8.1 Chemical Analysis— Samples Samples for chemical analysis and methodss of analysis shall be in accor method accordance dance with Test Methods, Practices, and Terminology A751 Terminology A751..
10.2 10. 2 Sam Sampli pling ng for har hardne dness ss test testing ing shall con confor form m to the product specification.
8.2 Heat Analysis— An An analysis of each heat of steel shall be made by the steel manufacturer to determine the percentages of those elements specified in the individual product specification. If secondary melting processes are employed, the heat analysis shall be obtained from one remelted ingot, or the product of one rem remelte elted d ing ingot, ot, fro from m each primary primary melt melt.. The che chemica micall analysis thus determined shall conform to the requirements of
11. Tensile Requirements 11. 1.1 1 Samplin Sampling g fo forr ten tensil silee te testi sting ng sh shall all co conf nfor orm m to th thee Product Specification. 11.2 When the dimensions 11.2 dimensions of the material to be tested will perm pe rmit, it, th thee te tens nsio ion n tes testt sp spec ecime imens ns sh shal alll be mac machi hine ned d to 3
A961/A961M − 16a TABLE 1 Product Analysis Tolerances for Higher Alloy and Stainless SteelsA,B E l e m en t
Carbon
M a ng an e s e
Phosphorous S u l fu r
Si l i c on
Chromium
Nickel
M o l y b de nu m
Titanium Columbium (Niobium) Tantalum Copper
Cobalt Nitrogen
Al um i num
Vanadium Cerium Tungsten
L i m i t or M a x i m u m o f Specified Range, Wt %
to 0 .0 1 0 , i n c l . over 0. over 0.01 010 0 to 0. 0.03 030, 0, in incl cl.. over ov er 0. 0.03 030 0 to 0. 0.20 20 in incl cl.. over ov er 0. 0.20 20 to 0. 0.80 80,, in incl cl.. to 1 .0 0 i n c l . over ov er 1. 1.00 00 to 3. 3.00 00 in incl cl.. over ov er 3. 3.00 00 to 6. 6.00 00,, in incl cl.. over ov er 6. 6.00 00 to 10 10.0 .00, 0, in incl cl.. t o 0 .0 4 0 , i n c l . over ov er 0. 0.04 040 0 to 0. 0.20 20,, in incl cl.. to 0 .0 4 0 i n c l . over ov er 0. 0.04 040 0 to 0. 0.20 20,, in incl cl.. over ov er 0. 0.20 20 to 0. 0.50 50,, in incl cl.. to 1 .0 0 , i n c l . over ov er 1. 1.00 00 to 3. 3.00 00 in incl cl.. over ov er 3. 3.00 00 to 7. 7.00 00,, in incl cl.. o v e r 4 .0 0 to 1 0 . 0 0 i n c l . over ov er 10 10.0 .00 0 to 15 15.0 .00 0 in incl cl.. over ov er 15 15.0 .00 0 to 20 20.0 .00 0 in incl cl.. over ov er 20 20.0 .00 0 to 30 30.0 .00 0 in incl cl.. t o 1. 00 i n c l . over ov er 1. 1.00 00 to 5. 5.00 00 in incl cl.. over ov er 5. 5.00 00 to 10 10.0 .00 0 in incl cl.. over ov er 10 10.0 .00 0 to 20 20.0 .00 0 in incl cl.. over ov er 20 20.0 .00 0 to 30 30.0 .00 0 in incl cl.. over ov er 30 30.0 .00 0 to 40 40.0 .00, 0, in incl cl.. t o 0 .2 0 i n c l . over ov er 0. 0.20 20 to 0. 0.60 60 in incl cl.. over ov er 0. 0.60 60 to 2. 2.00 00 in incl cl.. over ov er 2. 2.00 00 to 7. 7.00 00 in incl cl.. t o 1 .0 0 , i n c l . to 1 .5 0 , i n c l . t o 0. 10 i n c l . to 0 .5 0 , i n c l . over ov er 0. 0.50 50 to 1. 1.00 00,, in incl cl.. over ov er 1. 1.00 00 to 3. 3.00 00,, in incl cl.. 0 . 0 5 to 0 .2 0 i n c l . t o 0 .0 2 , i n c l . over ov er 0. 0.02 02 to 0. 0.19 19 in incl cl.. o v e r 0 .1 9 to 0 .2 5 o v e r 0 .2 5 to 0 .3 5 o v e r 0 .3 5 to 0 .4 5 o v e r 0 .4 5 to 0 . 1 5 , i n c l . over 0. over 0.15 15 to 0. 0.50 50,, in incl cl.. to 0 . 1 0 i n c l . over ov er 0. 0.10 10 to 0. 0.25 25 in incl cl.. to 0 . 2 0 , i n c l . to 0 .5 0 , i n c l . over ov er 0. 0.50 50 to 1. 1.00 00,, in incl cl.. over ov er 1. 1.00 00 to 2. 2.00 00,, in incl cl.. over ov er 2. 2.00 00 to 4. 4.00 00,, in incl cl..
TABLE 2 Product Analysis Tolerances for Carbon and Low Alloy SteelsA
Tolerance Over the Maximum Limit or Under the Minimum Limit
Toleran olerance ce Over Maximu Maximum m Limit or Under Minimum Limit for Size Ranges Shown, Wt %B
0 .0 0 2 0.00 0. 005 5 0.01 0. 01 0.02 0. 02 0 .0 3 0.04 0. 04 0.05 0. 05 0.06 0. 06 0 .0 0 5 0.01 0. 010 0 0. 00 5 0.01 0. 010 0 0.02 0. 020 0 0. 05 0.10 0. 10 0.15 0. 15 0. 10 0.15 0. 15 0.20 0. 20 0.25 0. 25 0 .0 3 0.07 0. 07 0.10 0. 10 0.15 0. 15 0.20 0. 20 0.25 0. 25 0. 01 0.03 0. 03 0.05 0. 05 0.10 0. 10 0 .0 5 0 .0 5 0 .0 2 0. 03 0.05 0. 05 0.10 0. 10 0.01C 0 .0 0 5 0.01 0. 01 0 .0 2 0 .0 3 0 .0 4 0 .0 5 – 0 .0 0 5 +0.01 0.05 0. 05 0 .0 1 0.02 0. 02 0 .0 1 0. 02 0.03 0. 03 0.04 0. 04 0.06 0. 06
E l em e n t
L i m i t or M a x i m um o f Specified Range, Wt %
Tolerance Over the Maximum Limit or Under the Minimum Limit
Carbon
to 0 .0 1 0 , i n c l . over 0.010 to 0.030, incl. overr 0.030 ove 0.030 to 0.20 0.20,, incl. incl. over ov er 0. 0.20 20 to 0. 0.80 80,, in incl cl.. t o 1. 00 , i nc l . over ov er 1. 1.00 00 to 3. 3.00 00,, in incl cl.. to 0 .0 4 0 , i n c l . overr 0.040 ove 0.040 to 0.20 0.20,, incl. incl. to 0 .0 4 0 , i n c l . overr 0.040 ove 0.040 to 0.20 0.20,, incl. incl. to 1 .0 0 , i n c l . over ov er 1. 1.00 00 to 3. 3.00 00,, in incl cl.. to 1 . 0 0 , i n c l . over ov er 1. 1.00 00 to 5. 5.00 00,, in incl cl.. overr 5.00 ove 5.00 to to 10.00 10.00,, incl. incl. over 10.00 to 20.00, incl. 0. 90 an d un d er over ov er 0. 0.90 90 to 2. 2.10 10,, in incl cl.. over ov er 2. 2.10 10 to 4. 4.00 00,, in incl cl.. overr 4.00 ove 4.00 to to 10.00 10.00,, incl. incl. 0 .2 0 a n d u n d e r over ov er 0. 0.20 20 to 0. 0.60 60,, in incl cl.. over ov er 0. 0.60 60 to 2. 2.00 00,, in incl cl.. 0. 10 an d un d er over ov er 0. 0.10 10 to 0. 0.25 25,, in incl cl.. over ov er 0. 0.25 25 to 0. 0.50 50,, in incl cl.. minimum value specified, under minimum limit only t o 1 .5 0 , i n c l . t o 1. 00 , i n c l . to 0 .1 5 , i n c l .
0 .0 0 2 0.005
M a n ga n es e Phosphorus S u l f ur Si l i c on Nickel
Chromium
M o l y b de nu m
Vanadium
Columbium (Niobium) Titanium A l um i n u m
LeadA Copper
Nitrogen Tungsten
Zirconium Boron
over 0. over 0.15 15 to 0. 0.50 50,, over ov er 0. 0.50 50 to 0. 0.80 80,, 0 .1 5 t o 0 .3 5 , i n c l . to 0 .5 0 , i n c l . over ov er 0. 0.50 50 to 1. 1.00 00,, over ov er 1. 1.00 00 to 3. 3.00 00,, t o 0. 02 , i n c l . over ov er 0. 0.02 02 to 0. 0.19 19,, to 0 .5 0 , i n c l . over ov er 0. 0.50 50 to 1. 1.00 00,, over ov er 1. 1.00 00 to 2. 2.00 00,, over ov er 2. 2.00 00 to 4. 4.00 00,, t o 0 .0 1 , i n c l . t o 0. 01 , i nc l .
incl.. incl incl in cl..
incl.. incl incl in cl.. incl in cl.. incl.. incl incl in cl.. incl in cl..
0.01 0.0 1 0.02 0.02 0 .0 3 0.04 0. 04 0. 00 5 0.010 0.0 10 0 .0 0 5 0.010 0.0 10 0 .0 2 0.10 0. 10 0 .0 3 0.07 0. 07 0.10 0.1 0 0.15 0 .0 3 0.05 0.05 0.07 0. 07 0.10 0.1 0 0 .0 1 0.03 0. 03 0.05 0. 05 0 .0 1 0.02 0. 02 0.03 0. 03 0.01
0. 05 0. 05 – 0 .0 0 5 +0.01 0.05 0. 05 0.07 0. 07 0 .0 3 0 .0 3 0.05 0. 05 0.10 0. 10 0. 00 5 0.01 0. 01 0 .0 2 0.03 0. 03 0.05 0. 05 0.06 0. 06 0. 00 5 0. 00 0 5
A
Chrome content less than 4.00. Cross-sectional area.
B
A
This table does not apply to heat analysis. Chrome content 4.00 or greater. C Product analysis limits for cobalt under 0.05 % have not been established and the producer should be consulted for those limits. B
subsize round specimen shall be machined. The tension test specimen shall be as large as feasible. 11.4 11 .4 The results results of the ten tensile sile tests shall conform conform to the tensile property requirements prescribed in the product specification.
standard round 2-in. gauge length tension test specimen described in Test Methods and Definitions A370 if inch-pound units are specified or the standard gauge length tension test specimens described in the applicable track of Test Methods A1058 if A1058 if SI units are specified.
11.5 If the res 11.5 result ultss of tension tension tests do not conform conform to the requirements specified in the product specification, retests are permitted as outlined in the test methods specified herein. If the result res ultss of any tension tension tes testt spe specime cimen n are les lesss tha than n spe specifi cified ed because a flaw becomes evident in the test specimen during
11.3 In the case case of small sections, sections, which will not per permit mit taking taki ng of the stan standar dard d test specimen specimen des descri cribed bed in 11.2, 11.2, the 4
A961/A961M − 16a testing, a retest shall be allowed provided that the defect is not attributable to ruptures, cracks, or flakes in the steel.
15.2.1 The surface finish 15.2.1 finish shall allow the detection of imperfections that can be disclosed by visual inspection. 15.2 15 .2.2 .2 The cle clean aned ed pa part rtss sh shal alll be pr prot otec ected ted to pr prev even entt recontamination. 15.2.2.1 15.2. 2.1 Exterio Exteriorr and interio interiorr surfaces of carbon, low and intermediate alloy steel fittings shall have a corrosion protective coating. Unless otherwise specified by the purchaser, the type ty pe of su surf rfac acee pr prot otec ecti tion on sh shal alll be at th thee op opti tion on of th thee manufacturer. 15.2.2.2 15.2. 2.2 Stainle Stainless ss steel and nickel alloy fittings need not be coated. Unmachined surfaces of stainless steel fittings shall be passivated by exposure to an acid bath, or electropolished. 15.2.3 15.2. 3 Protec Protective tive coatings on parts subsequently subsequently subjected to socket welds or butt welds shall be suitable for welding withou wit houtt rem remova ovall of the coa coating ting.. Thr Thread eaded ed fitti fittings ngs sha shall ll be capable of installation without the removal of the coating. 15.2.4 15.2. 4 When specified specified in the purchase purchase order, parts may be furnished in the as-formed or as-forged condition.
12. Impact Requirements Requirements 12.1 12. 1 The par partt sha shall ll con confor form m to the imp impact act req requir uireme ements nts prescribed in the product specification. 12.2 Sampl 12.2 Samplin ing g fo forr imp impact act te testi sting ng sh shal alll co conf nfor orm m to th thee Product Specification. 12.3 Notche Notched-bar d-bar impact specimens specimens shall be simplesimple-beam, beam, Charpy-type A with a V-notch V-notch in accordance with Test Methods Methods and Definitions A370 if the inch-pound units are specified or Test Method Methodss A1058 if the M suffix (SI Units) standard is specified. Standard specimens 10 by 10 mm in cross section shall be used unless the material to be tested is of insufficient thickness, in which case the largest obtainable standard subsize impact specimens shall be used. When the size or shape of the finished fittings is insufficient to permit obtaining the smallest standard subsize impact specimens, an impact test by the fitting manufacturer will not be required.
15.3 The parts shall be fre 15.3 freee of inju injurio rious us imp imperf erfect ection ionss as defined below. At the discretion of the inspector representing the pur purcha chaser ser,, fini finishe shed d par parts ts sha shall ll be sub subject ject to rej rejecti ection on if surface surfa ce imperf imperfection ectionss acceptab acceptable le under under 15.5 15.5 are are not scattered, but appear over a large area.
12.4 If the average impact energy value value meets the product product specification requirements, specification requirements, but the energy value for one specimen is bel below ow the spe specifie cified d min minimu imum m val value ue for individu individual al specime spe cimens, ns, a ret retest est is per permitt mitted. ed. This sha shall ll con consis sistt of two impact specimens from a location adjacent to, and on either side of, the specimen that failed. Each of the retested specimens must exhibit an energy value equal to or greater than the minimum minimu m averag averagee value required by the product specification. specification.
Depth of Inj Injuri urious ous Imp Imperfe erfectio ctions— ns— Selecte 15.4 Depth Selected d typical linear and other typical surface imperfections shall be explored forr de fo dept pth. h. Wh When en th thee de dept pth h en encr croa oach ches es on th thee mi mini nimu mum m specified wall thickness of the finished part, such imperfections shall be considered injurious.
13. Hydrostatic Test Test Requirements
15.5 Impe Surface Imperfe rfectio ctions ns Not Cla Classifi ssified ed as Inj Injuri urious ous— — Surface imperf imp erfecti ections ons not clas classifi sified ed as inj injuri urious ous sha shall ll be trea treated ted as follows: 15.5.1 15.5. 1 Seams, laps, tears, or slivers not deeper deeper than 5 % of the actual wall thickness at the point of interest or 1 ⁄ 16 16 in. [1.6 mm], mm ], wh which ichev ever er is le less ss,, ar aree ac accep ceptab table. le. If de deep eper er,, th these ese impe im perf rfect ectio ions ns re requ quir iree re remo mova val, l, an and d sh shall all be re remo move ved d by machining or grinding. 15.5.2 15. 5.2 Mechani Mechanical cal mar marks ks or abr abrasio asions ns and pits sha shall ll be acceptable without grinding or machining provided the depth does not exceed 1 ⁄ 16 16 in. [1.6 mm]. If such imperfections are 1 deeper than ⁄ 16 in. [1 [1.6 .6 mm] bu butt do not en encr croa oach ch on th thee 16 in. minimum wall thickness of the forging they shall be removed by machining or grinding to sound metal. 15.5.3 15. 5.3 The wal walll thi thickn ckness ess at the point of gri grindi nding, ng, or at imperfections not required to be removed, shall be determined by de dedu duct ctin ing g th thee am amou ount nt re remo move ved d by gr grin indi ding ng,, fr from om th thee nominal finished wall thickness of the part. In any case, the wall thickness shall not be less than the specified minimum value.
13.1 Par 13.1 Parts ts man manufa ufactu ctured red und under er this spe specifi cificati cation on sha shall ll be capable of passing a hydrostatic test compatible with the rating of th thee fin finis ishe hed d pa part rt.. Su Such ch tes tests ts sh shall all be co cond nduc ucted ted by th thee supplier only when the hydrostatic test supplementary requirement in the product specification is invoked by the purchaser. 14. Rewo Rework rk 14.1 Whe 14.1 When n one or mor moree rep repres resent entativ ativee tes testt spe specim cimens ens or retest specimens do not conform to the requirements specified in the pro produc ductt spe specific cificatio ation n for the test tested ed char characte acteris ristic, tic, the product may be reworked according to the following requirements: 14.1.1 14.1. 1 If previously previously tested in the unheat treated condition, condition, the product may be reworked by heat treatment, and subsequently retested, in accordance with the product specification. 14.1.2 14.1. 2 If previously previously tested in the heat treated condition, condition, the produc pro ductt may be rew rework orked ed by reh reheat eat tre treatme atment, nt, and sub subsesequently retested, in accordance with the product specification. 15. Surface Finish, Appearance, and Corrosion Corrosion Protection
16. Repa Repair ir by Welding Welding 16.1 Th 16.1 Thee pu purc rcha hase serr ma may y re requ quir iree th thee su supp pplie lierr to su subm bmit it proposed weld repairs for approval by invoking the appropriate supplementary requirement from the applicable product specification in the purchase order. If the purchaser does not require prior approval of proposed weld repairs, these repairs shall be permitted at the discretion of the supplier. supplier. All weld repairs shall be performed in accord accordance ance with the following limitations limitations and requirements.
15.1 The parts shall conform to the dimen dimensions, sions, tolerances, tolerances, and finish as specifi specified ed on the purchaser’s purchaser’s drawing or order and the indivi individual dual ASTM produ product ct specific specification. ation. 15.2 The finished parts parts shall be cleaned to remove all scale and processing compounds prior to the final surface examination. The cleaning process shall not injure the surface finish, material properties, or the metallurgical structure. 5
A961/A961M − 16a 16.1.1 The welding procedure procedure and welders shall be qualified in acc accor orda danc ncee wi with th Se Secti ction on IX of th thee AS ASME ME Bo Boile ilerr an and d Pressure Vessel Code. 16.1.2 16.1. 2 Defect Defectss shall be completely removed removed prior to welding by chipping or grinding to sound metal. Removal of these defects def ects sha shall ll be ver verified ified by mag magnet netic ic par particl ticlee ins inspec pectio tion n in accordance with Test Method A275/A275M Method A275/A275M or or Guide E709 Guide E709 for for the fer ferrit ritic, ic, mar marten tensiti sitic, c, or fer ferrit ritic/a ic/aust usteni enitic tic gra grades des,, or by liquid penetrant penetrant inspe inspection ction in accord accordance ance with Test Method E165/E165M for E165/E165M for ferritic, martensitic, or austenitic grades. 16.1.3 16.1. 3 After repair repair welding, the welded area shall be ground ground smooth to the original contour and shall be completely free of defects def ects as ver verified ified by mag magnet netic ic par particl ticlee or liq liquid uid pen penetr etrant ant inspection, inspec tion, as applica applicable. ble. 16.1 16 .1.4 .4 Rep Repair air by we weld ldin ing g sh shall all no nott ex excee ceed d 10 % of th thee 1 surface area of the part, or 33 ⁄ 3 % of the wall thickness of the finished product, or 3 ⁄ 8 in. [10 mm] deep at the location of the repair.
19.3 A single single document, containing containing the test repor reportt information and certificate of compliance information may be used. 19.4 A certifica 19.4 certificate te printed printed from or use used d in elec electro tronic nic data interchange (EDI) transmission shall be regarded as having the same validity as a count counterpoin erpointt printe printed d in the certifiers facility. facility. The content of the EDI transmitted document shall conform to any existing EDI agreement between the purchaser and supplier. 19.5 19 .5 Not wi with thsta stand ndin ing g th thee ab absen sence ce of a si sign gnatu ature re,, th thee organization submitting either a printed certificate or an EDI transm tra nsmitte itted d cer certific tificate ate is res respon ponsib sible le for the con conten tentt of the report. 20. Mark Marking ing 20.1 Each piece shall shall be legibly marked marked in a position as not to in inju jure re th thee us usef eful ulne ness ss of th thee fo forg rgin ings gs wi with th th thee pr prod oduc uctt specification specifi cation number, number, grade or markin marking g symbo symbol, l, class, certifying organization’s name or symbol, the heat number or heat identification, size, and service rating, if applicable. Dual or multiple marking with the product specification number, grade or mar marki king ng sy symb mbol ol,, an and d cla class ss is ac accep ceptab table le pr prov ovid ided ed th thee material meets all the requirements with which it is marked. It is not required to mark the product with the specification year and date of issue. When size or shape does not permit the inclusion of all the required marking as described, see 20.2. 20.2. Manufacturer can also choose the use of tags, box labels, etc. for identification when per piece marking is not practical due to size or shape.
16.2 The we 16.2 weld ld re repa pair ir sh shall all co conf nfor orm m to 9.2 and and to th thee additional requirements, if any, invoked in the Product Specification. 17. Inspe Inspectio ction n 17.1 The supplier shall afford afford the purchaser’s purchaser’s inspe inspector ctor all reasonable facilities necessary to satisfy him that the material is being produced and furnished in accordance with the general specific spe cificatio ation n and the app applica licable ble pro produc ductt spe specifi cificati cation. on. Site inspection by the purchaser shall not interfere unnecessarily with the supplier’s operations.
20.2 20. 2 The Stan Standar dard d Mar Markin king g Sys System tem of Valv alves, es, Fitt Fitting ings, s, Flanges and Unions MSS SP 25 shall be followed except the word “steel” shall not be substituted for the specification grade.
18. Reje Rejectio ction n and Rehearing Rehearing 18.1 18. 1 Sam Sample pless rep repres resent enting ing mat materia eriall rej rejecte ected d by the pur pur-chaser shall be preserved until disposition of the claim has been agreed upon between the manufacturer and the purchaser.
20.3 Produ 20.3 Product ct markin marking g sh shall all confo conform rm to the add additi ition onal al requirements, if any, invoked in the product specification or purchase order.
18.2 Materia Materiall that shows injurious defects defects subsequent subsequent to its acceptance at the manufacturer’s works will be rejected, and the manufacturer shall be notified.
21. Pack Packagin aging, g, Marking and Loadi Loading ng for Shipm Shipment ent 21.1 Packag Packaging, ing, marking, marking, and loading for shipment shipment shall be in accordance with Practices A700 Practices A700..
19. Cert Certifica ification tion 19.1 A te 19.1 test st re repo port rt an and d a ce cert rtifi ifica cate te of co comp mpli lian ance ce ar aree required.
22. Keyw Keywords ords
19.2 Test rep 19.2 report ortss sha shall ll inc includ ludee the year/date year/date of issu issue, e, the results of all tests required by this specification, the product specification and the purchaser order, and shall be traceable to the part represented.
22.1 allo 22.1 alloy y stee steel; l; carb carbon on ste steel; el; fitt fitting ings; s; flan flanges ges;; for forgin gings; gs; general requirement; piping applications; pressure containing parts; par ts; stai stainle nless ss ste steel; el; temp tempera eratur turee ser servic vicee app applica lication tions— s— elevated; elevate d; temper temperature ature servic servicee applic applications ations—high; —high; valves
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A961/A961M − 16a SUPPLEMENTARY REQUIREMENTS These req These requir uiremen ements ts sha shall ll not be con consid sidere ered d unl unless ess spe specifie cified d in the ord order er,, in whi which ch eve event, nt, the supplementary requirements specified shall be made at the place of manufacture, unless otherwise agreed upon, at the purchaser’s expense. The test specified shall be witnessed by the purchaser’s inspector before shipment of material, if so specified in the order. The rationale for beginning the secti se ction on nu numb mber erin ing g wi with th S5 S50 0 is to eli elimin minate ate th thee po poss ssib ibili ility ty of co conf nfus usio ion n wi with th su supp pplem lemen entar tary y requirement requi rementss existin existing g in indivi individual dual prod product uct specifi specifications cations.. S50. Macroetc Macroetch h Test Test
S55. Magnetic Particle Examination
S50.1 A sample S50.1 sample for forgin ging g sha shall ll be sect section ioned ed and etched etched to show flow lines and internal imperfections. The test shall be conducted according to Method E381 E381.. S50.2 S50 .2 Acc Accept eptanc ancee limi limits ts sha shall ll be as agr agreed eed upon betw between een the certifying organization and the purchaser.
S55.1 All accessible surfaces of the finished forging shall be examined by a magnetic particle method. The method shall be in acc accord ordanc ancee with Test Test Meth Method od A275/A275M. A275/A275M . Acceptance limits shall be as agreed upon between the certifying organization and the purchaser.
S51. Heat Analys Analysis is
S56. Liquid Penetrant Penetrant Examination Examination
S51.1 When secondary secondary melting processes processes are emplo employed, yed, a heat analysis shall be obtained from each remelted ingot, or the product of each remelted ingot, from each primary melt. The chemical analysis thus determined shall conform to the requirements men ts of the ind indivi ividua duall pro produc ductt spe specific cificatio ation. n. Not Notee tha thatt the produc pro ductt ana analys lysis is (ch (check eck ana analys lysis) is) tol tolera erance ncess are not to be applied to the heat analysis requirements.
S56.1 All accessible accessible surfaces shall be examined by a liquid penetrant penetra nt meth method od in acco accorda rdance nce wit with h Test Met Method hod E165/ E165M.. Acceptance limits shall be as agreed upon between the E165M certifying organization and the purchaser. S57. Hydrostatic Testing Testing S57.1 A hydrostati hydrostaticc test at a pressure agreed agreed upon between the certifying organization and the purchaser shall be applied by the certif certifying ying org organizatio anization. n.
S52. Product Analysis S52.1 A product product analysis shall be made from one randomly selected sele cted for forgin ging g rep repres resent enting ing each hea heat. t. The res result ultss sha shall ll comply with the prod product uct analysis limits listed in the applic applicable able product specification. For Specification A182/A182M grades of F20 and F58, results shall comply with the product analysis limits listed in Specification B880 Specification B880.. S52.2 If the analysis fails to compl comply y, each for forging ging shall be checked or the lot rejected. All results shall be reported to the purchaser.
S58. Repair Welding Welding S58.1 No rep S58.1 repair air wel weldin ding g sha shall ll be per permitt mitted ed with without out pri prior or approv app roval al of the pur purcha chaser ser.. If per permitt mitted, ed, the res restric triction tionss of Section 16 16 shall shall apply. S59. Electr Electropolis opolished hed Austen Austenitic itic and Ferr Ferritic– itic–Austeni Austenitic tic Grades S59.1 All electropolish electropolished ed austenitic austenitic and ferritic–au ferritic–austenitic stenitic products shall be of a cleanliness in accordance with Specification A967/A967M cation A967/A967M.. S59.2 Details concern concerning ing which which test method method of SpecificaSpecification A967/A967M tion A967/A967M are are to be a matter of agreement between the manufacturer and the purchaser.
S53. Tension Tests Tests S53.1 In add S53.1 additio ition n to the req requir uireme ements nts of Sec Section tion 9, one tension tens ion spe specim cimen en sha shall ll be obt obtain ained ed fro from m a rep repres resent entativ ativee forging from each heat at a location agreed upon between the certifying organization and the purchaser. The results of the test shall comply with the tensile property requirements listed in the applicable product specification and shall be reported to the purchaser.
S60. Positive Material Material Identification Examination Examination S60.1 For Forgings gings shall receive positive material identification identification to ensure that the purchaser is receiving forgings of the correct material grade prior to shipment of the forgings. This examination is a method to ensure that no material grade mix-up has occurred during the manufacturing and marking of the forgings. S60.2 For Forgings gings shall receive a positiv positivee materia materiall identification examination in accordance with Guide E1916 E1916.. S60.3 S60 .3 The quantity quantity examined examined sha shall ll be 100 % of the for forggings. S60.4 All forgings forgings that are not of the correct material material grade shall be rejected. S60.5 S60 .5 The meth method od of for forgin ging g mar markin king g aft after er exa examin minatio ation n shall sh all be ag agre reed ed up upon on be betw tween een th thee ma manu nufa factu cture rerr an and d th thee purchaser.
S54. Impact Tests Tests S54.1 In add S54.1 additio ition n to the req requir uiremen ements ts of Sec Section tion 9, three CVN CV N im impa pact ct en ener ergy gy sp spec ecime imens ns sh shall all be ob obta tain ined ed fr from om a representative forging from each heat at a location agreed upon between the certifying organization and the purchaser. S54.2 The purchaser purchaser shall supply the impact test temper temperaaturee and the req tur requir uired ed min minimu imum m req requir uiremen ements ts for the test test,, inclu in cludi ding ng th thee lo lowe west st si sing ngle le ab abso sorb rbed ed en ener ergy gy fo forr a sin singl glee specimen if an average absorbed energy value is required. The lateral late ral exp expans ansion ion val values ues and the fra fractu cture re app appear earanc ancee of the specimens as percentage ductile fracture shall be reported for information if these parameters are not part of the acceptance requirements. 7
A961/A961M − 16a
S62. Requirements Requirements for Carbon Steel Products Products for Concentrated Hydrofluoric Acid Service
S62.5 The minimum minimum C content based on heat analysis analysis shall be 0.18 wt %. The maximum C content shall be as specified in the appro appropriate priate materia materiall specifi specification. cation. S62.6 S62 .6 Rep Repair air welds shall not be made with E60XX E60XX elec elec-trodes tro des.. Use of E70 E70XX XX elec electro trodes des is rec recomm ommend ended, ed, and the result res ulting ing wel weld d che chemist mistry ry sho should uld mee meett the sam samee che chemis mistry try criteria as the base metal as listed above. S62.7 In addition to the requirements requirements of product marking marking of the specification, a “HF” stamp or marking shall be provided on each component to identify that component complies with this supplementary requirement.
S62. S6 2.1 1 The ma maxi ximu mum m car carbo bon n eq equi uiva valen lentt ba base sed d on he heat at analysis shall be as follows:
S63 Pressure Equipment Directive—Mechanical Testing
S61. Heat Trea Treatmen tmentt in the Worki orking ng Zone of a Surve Surveyed yed Furnace S61.1 Materia Materiall shall be heat treated in the working zone of a fur furnac nacee tha thatt has bee been n sur survey veyed ed in acco accorda rdance nce wit with h Test Method A991/A991M Method A991/A991M,, provided that such working zone was established using a variation of 25 °F [14 °C] or less from the furnace set point. S61.2 The test report shall indicate that S61 applies. applies.
Maximum section thickness less than or equal to 1 in. Maximu Max imum m sect section ion thi thickn ckness ess gre greate aterr than than 1 in. in.
S63.1 Cha S63.1 Charpy rpy impact impact test testing ing shall be don donee at the lowest scheduled operating temperature but not higher than 68 °F [20 °C]. S63.2 The frequency frequency of impact testing testing shall be the same as that specified in the product specification for the tension test, with three individual Charpy test specimens for each required tension tensio n test. S63. S6 3.3 3 Th Thee min minimu imum m imp impact act ab abso sorp rpti tion on en ener ergy gy fo forr th thee Charpy test specimen shall be at least 20 ft/lb [27 J]. S63.4 The minimum elongation elongation in the tension test shall be measured on a gauge length of five times the diameter of the test specimen, and it shall not be less than 14 %. S63.5 Impac Impactt and tension test results shall shall be included in the product certification.
CE maximum = 0.43 CE max maximu imum m = 0.4 0.45 5
S62.2 Determ Determine ine the carbo carbon n equivalent (CE) as follo follows: ws: CE 5 C 1 Mn ⁄6 1 ~ C r 1 M o
1
V ! ⁄ ⁄5 5 1 ~ N i
1
C u ! ⁄15
(1 )
S62.3 Vanadiu anadium m and Niobium maximum content based on heat analysis shall be: Maximum Vanadium = 0.02 wt % Maximum NiobiumA = 0.02 wt % Maximum Vanadium plus NiobiumA = 0.03 wt % A
Niobium = Columbium
S62.4 The maximum composition composition based on heat analysis of Ni + Cu shall be 0.15 wt %.
ANNEXES (Mandatory Information) A1. REQUIREMEN REQUIREMENTS TS FOR THE INTRODUCT INTRODUCTION ION OF NEW MATERIALS MATERIALS
A1.1 New ma A1.1 mater teria ials ls ma may y be pr prop opos osed ed fo forr in inclu clusi sion on in specifications referencing this specification of general requirements subject to the following conditions:
A1.1.3 The application application shall be accompanied accompanied by test data as requir req uired ed by the app applica licable ble spe specifi cificati cation. on. Test Test dat dataa fro from m a minimum of three test lots, as defined by the specification, each from a different heat, shall be furnished.
A1.1.1 Applicatio A1.1.1 Application n for the add additio ition n of a new grade grade to a specification shall be made to the chair of the subcommittee that has jurisdiction over that specification.
A1.1.4 The application application shall provide recommendatio recommendations ns for all requirements appearing in the applicable specification.
A1.1.2 The application A1.1.2 application shall be accompanied accompanied by a stateme statement nt from at least one user indicating indicating that there is a need for the new grade to be included in the applicable specification.
A1.1.5 The applicati A1.1.5 application on shall state whe whethe therr or not the new grade is covered by patent.
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A961/A961M − 16a A2. REQUIREMEN REQUIREMENTS TS FOR THE INTRODUCT INTRODUCTION ION OF MATERIALS MATERIALS FROM OTHER A01 OR B02.07 SPECIFICATIONS SPECIFICATIONS
A2.1 Wro Wrought ught materials materials that are alread already y covered by another A01 or B02.07 specification may be proposed for inclusion in specifications referencing this specification of general requirements subject to the following conditions:
A2.1.2 The chemical requirements, requirements, the specifi specified ed mechanical properties, and the heat treatment requirements of the grade being added added shall be the same as those for the grade in the A01 or B02.07 specification in which the grade is presently covered.
A2.1.1 Applic A2.1.1 Application ation for the addition addition of a grade that is already covered in another A01 or B02.07 specification shall be made to the chair of the subcommittee that has jurisdiction over that specification.
A2.1.3 The application shall provide the recom recommendat mendations ions for all requirements appearing in the applicable specification. A2.1.4 The application application shall state whether or not the grade is covered by patent.
SUMMARY OF CHANGES Committ Com mittee ee A01 has ide identi ntified fied the loca locatio tion n of sele selected cted changes changes to thi thiss spe specific cificatio ation n sin since ce the las lastt issu issue, e, A961/A961M – 16, that may impact the use of this specification. (Approved Dec. 1, 2016) (1) Revised Section 7 Section 7 heat heat treat definitions related to annealing and stress relieving.
(2) Added Added 12.3 12.3 to to define test methods used for impact testing.
Committee Committ ee A01 has ide identi ntified fied the loca locatio tion n of sele selected cted changes changes to thi thiss spe specific cificatio ation n sin since ce the las lastt issu issue, e, A961/A961M–15, that may impact the use of this specification. (Approved June 1, 2016) (1) Revised 15.2.2.1 to clarify corrosion protection requirements.
(2) Deleted S62.1 and renumbered subsequent sections accordingly.
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