A0403_A0403M-06锻制奥氏体不锈钢管配件.pdf
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1、Designation:A 403/A 403M 06Standard Specification forWrought Austenitic Stainless Steel Piping Fittings1This standard is issued under the fixed designationA 403/A 403M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last
2、revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification covers wrought stainless
3、steel fittingsfor pressure piping applications.21.2 Several grades of austenitic stainless steel alloys areincluded in this specification Grades are designated with aprefix,WP or CR,based on the applicable ASME or MSSdimensional and rating standards,respectively.1.3 For each of the WP stainless grad
4、es,several classes offittings are covered,to indicate whether seamless or weldedconstruction was utilized.Class designations are also utilizedto indicate the nondestructive test method and extent ofnondestructive examination(NDE).Table 1 is a generalsummary of the fitting classes applicable to all W
5、P grades ofstainless steel covered by this specification.There are noclasses for the CR grades.Specific requirements are coveredelsewhere.1.4 This specification is expressed in both inch-pound unitsand in SI units.However,unless the order specifies theapplicable“M”specification designation(SI units)
6、,the mate-rial shall be furnished to inch-pound units.1.5 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem are not exact equivalents;therefore,each system mustbe used in
7、dependently of the other.Combining values from thetwo systems may result in nonconformance with the specifi-cation.1.6 This specification does not apply to cast steel fittings.Austenitic stainless steel castings are covered in SpecificationsA 351/A 351M,A 743/A 743M,and A 744/A 744M.2.Referenced Doc
8、uments2.1 ASTM Standards:3A 351/A 351M Specification for Castings,Austenitic,forPressure-Containing PartsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 480/A 480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet,and Str
9、ipA 743/A 743M Specification for Castings,Iron-Chromium,Iron-Chromium-Nickel,Corrosion Resistant,for GeneralApplicationA 744/A 744M Specification for Castings,Iron-Chromium-Nickel,Corrosion Resistant,for Severe ServiceA 751 Test Methods,Practices,and Terminology forChemical Analysis of Steel Product
10、sA 960/A 960M Specification for Common Requirementsfor Wrought Steel Piping FittingsE 112 Test Methods for Determining Average Grain SizeE 165 Test Method for Liquid Penetrant Examination2.2ASME Standards:ASME B16.9 Factory-Made Wrought Steel Butt-WeldingFittings4ASME B16.11 Forged Steel Fittings,So
11、cket-Welding andThreaded42.3MSS Standards:MSS SP-25 Standard Marking System for Valves,Fittings,Flanges,and Unions5MSS SP-43 Standard Practice for Light Weight StainlessSteel Butt-Welding Fittings51This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Relate
12、d Alloys and is the direct responsibility of SubcommitteeA01.22 on Steel Forgings and Wrought Fittings for PipingApplications and BoltingMaterials for Piping and Special Purpose Applications.Current edition approved March 1,2006.Published March 2006.Originallyapproved in 1956.Last previous edition a
13、pproved in 2004 as A 403/A 403M-04.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-403 in Section II of that Code.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandard
14、s volume information,refer to the standards Document Summary page onthe ASTM website.4Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990.5Available from Manufacturers Standardization Society of the Valve and FittingsInd
15、ustry(MSS),127 Park St.,NE,Vienna,VA 22180-4602.1*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.MSS SP-79 Socket-Welding Reducer Inserts52.4ASME Boiler and Pressure Vessel
16、Code:Section VIII Division I,Pressure Vessels4Section IX,Welding Qualifications42.5AWS Standards:A 5.4 Specification for Corrosion-Resisting Chromium andChromium-Nickel Steel Covered Welding Electrodes6A 5.9 Specification for Corrosion-Resisting Chromium andChromium-Nickel Steel Welding Rods and Bar
17、e Elec-trodes62.6ASNT:SNT-TC-1A(1984)Recommended Practice for Nonde-structive Testing Personnel Qualification and Certifica-tion73.Common Requirements and Ordering Information3.1 Material furnished to this specification shall conform tothe requirements of SpecificationA 960/A 960M including anysuppl
18、ementary requirements that are indicated in the purchaseorder.Failure to comply with the common requirements ofSpecification A 960/A 960M constitutes nonconformance withthis specification.In case of conflict between this specificationand Specification A 960/A 960M,this specification shall pre-vail.3
19、.2 Specification A 960/A 960M identifies the ordering in-formation that should be complied with when purchasingmaterial to this specification.4.Material4.1 The material for fittings shall consist of forgings,bars,plates,or seamless or welded tubular products that conform tothe chemical requirements
20、in Table 2.See Table 3 for a list ofcommon names.4.2 The steel shall be melted by one of the followingprocesses:4.2.1 Electric furnace(with separate degassing and refiningoptional),4.2.2 Vacuum furnace,or4.2.3 One of the former followed by vacuum or electroslag-consumable remelting.4.3 If secondary
21、melting is employed,the heat shall bedefined as all ingots remelted from a primary heat.5.Manufacture5.1 FormingForging or shaping operations may be per-formed by hammering,pressing,piercing,extruding,upsetting,rolling,bending,fusion welding,machining,or by a combina-tion of two or more of these ope
22、rations.The forming procedureshall be so applied that it will not produce injurious defects inthe fittings.5.2 All fittings shall be heat treated in accordance withSection 6.5.3 Grade WP fittings ordered as Class S shall be ofseamless construction and shall meet all requirements ofASME B16.9 or MSS
23、SP-79.5.4 Grade WP fittings ordered as Class W shall meet therequirements of ASME B16.9 and:5.4.1 Shall have all pipe welds made by mill or the fittingmanufacturer with the addition of filler metal radiographicallyexamined throughout the entire length in accordance with theCode requirements stated i
24、n 5.5,and,5.4.2 Radiographic inspection is not required on singlelongitudinal seam welds made by the starting pipe manufac-turer if made without the addition of filler metal;and5.4.3 Radiographic inspection is not required on longitudi-nal seam fusion welds made by the fitting manufacturer whenall o
25、f the following conditions have been met:5.4.3.1 No addition of filler metal,5.4.3.2 Only one welding pass per weld seam,and,5.4.3.3 Fusion welding from one side only.5.4.4 In place of radiographic examination,welds made bythe fitting manufacturer may be ultrasonically examined inaccordance with the
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