1、Designation:A488/A488M17Standard Practice forSteel Castings,Welding,Qualifications of Procedures andPersonnel1This standard is issued under the fixed designation A488/A488M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of
2、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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This practice covers the qualificati
3、on of procedures,welders,and operators for the fabrication and repair of steelcastings by electric arc welding.1.1.1 Qualifications of a procedure and either or both theoperator or welder under Section IX of the ASME Boiler andPressure Vessel Code shall automatically qualify the procedureand either
4、or both the operator or welder under this practice.P-number designations in the ASME grouping of base metalsfor qualification may be different than the category numberslisted in Table 1.Refer to Appendix X1 for a comparison ofASTM category numbers with the corresponding ASMEP-Number designations.1.2
5、 Each manufacturer or contractor is responsible for thewelding done by his organization and shall conduct the testsrequired to qualify his welding procedures,welders,andoperators.1.3 Each manufacturer or contractor shall maintain a recordof welding procedure qualification tests(Fig.1),welder oropera
6、tor performance qualification tests(Fig.2),and weldingprocedure specification(Fig.3),which shall be made availableto the purchasers representative on request.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not
7、be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.4.1 SI UnitsWithin the text,the SI units are shown inbrackets.1.5This standard does not purport to address all of thesafety concerns
8、,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recogni
9、zed principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A27/A27M Specification for
10、Steel Castings,Carbon,forGeneral ApplicationA128/A128M Specification for Steel Castings,AusteniticManganeseA148/A148M Specification for Steel Castings,HighStrength,for Structural PurposesA216/A216M Specification for Steel Castings,Carbon,Suit-able for Fusion Welding,for High-Temperature ServiceA217/
11、A217M Specification for Steel Castings,MartensiticStainless and Alloy,for Pressure-Containing Parts,Suit-able for High-Temperature ServiceA297/A297M Specification for Steel Castings,Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant,for General ApplicationA351/A351M Specification for Castings,Aus
12、tenitic,forPressure-Containing PartsA352/A352M Specification for Steel Castings,Ferritic andMartensitic,for Pressure-Containing Parts,Suitable forLow-Temperature ServiceA356/A356M Specification for Steel Castings,Carbon,LowAlloy,and Stainless Steel,Heavy-Walled for Steam Tur-binesA370 Test Methods a
13、nd Definitions for Mechanical Testingof Steel Products1This practice is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved May 1,2017.Published May 2017.Originallyapprove
14、d in 1963.Last previous edition approved in 2016 as A488/A488M 16.DOI:10.1520/A0488_A0488M-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summ
15、ary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles
16、on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 TABLE 1 Categories of Base MaterialsCategoryNumberMaterial DescriptionASTMSpecificationGrades1Carbon steel(carbon less than0.35%,tensile strength lessA27/A27Mall gradesthan or equal to 70 ksi 485 MPa)A216/A216MWCA,WCBA352/A352MLCB,LCAA356/A356M1A732/A732M1A,2AA757/A757MA1QA958/A958M
