1、Designation:A989/A989M18Standard Specification forHot Isostatically-Pressed Alloy Steel Flanges,Fittings,Valves,and Parts for High Temperature Service1This standard is issued under the fixed designation A989/A989M;the number immediately following the designation indicates the yearof original adoptio
2、n 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.Scope*1.1 This specification covers hot isostatically-pressed,pow-der metallurgy,alloy ste
3、el piping components for use inpressure systems.Included are flanges,fittings,valves,andsimilar parts made to specified dimensions or to dimensionalstandards,such as in ASME Specification B16.5.1.2 Several grades of alloy steels are included in thisspecification.1.3 Supplementary requirements are pr
4、ovided for use whenadditional testing or inspection is desired.These shall applyonly when specified individually by the purchaser in the order.1.4 This specification is expressed in both inch-pound unitsand in SI units.Unless the order specifies the applicable“M”specification designation(SI units),h
5、owever,the material shallbe furnished to inch-pound units.1.5 The values stated in either inch-pound units or SI unitsare to be regarded separately as the standard.Within the text,the SI units are shown in brackets.The values stated in eachsystem are not exact equivalents;therefore,each system mustb
6、e used independently of the other.Combining values from thetwo systems may result in nonconformance with the specifi-cation.1.6 The following safety hazards caveat pertains only to testmethods portions,8.1,8.2,and 9.5 9.7 of this specification:This standard does not purport to address all of the saf
7、etyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety,health,and environmental practices and to determine theapplicability of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance wit
8、h internationally recognized 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:2A2
9、75/A275M Practice for Magnetic Particle Examination ofSteel ForgingsA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsA961/A961M Specification for Common Requirements forSteel Flanges,Forged Fittings,Valves,and Parts forPiping ApplicationsB311 Test Method for Densit
10、y of Powder Metallurgy(PM)Materials Containing Less Than Two Percent PorosityE165/E165M Practice for Liquid Penetrant Examination forGeneral IndustryE340 Practice for Macroetching Metals and AlloysE606/E606M Test Method for Strain-Controlled FatigueTesting2.2 MSS Standard:SP 25 Standard Marking Syst
11、em for Valves,Fittings,Flanges,and Unions32.3 ASME Specifications and Boiler and Pressure VesselCodes:B16.5 Dimensional Standards for Steel Pipe Flanges andFlanged Fittings42.4 ASME Section IX Welding Qualifications:SFA-5.5 Specification for Low-Alloy Steel Covered Arc-Welding Electrodes43.Terminolo
12、gy3.1 Definitions of Terms Specific to This Standard:1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.22 on Steel Forgings and Wrought Fittings for Piping Applications and BoltingMateri
13、als for Piping and Special Purpose Applications.Current edition approved March 1,2018.Published March 2018.Originallyapproved in 1998.Last previous edition approved in 2015 as A989/A989M 15.DOI:10.1520/A0989_A0989M-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM
14、Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Manufacturers Standardization Society of the Valve and FittingsIndustry(MSS),127 Park St.,NE,Vienna,VA 22180-4602,http:/www.mss-.4Av
15、ailable from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Two Park Ave.,New York,NY 10016-5990,http:/www.asme.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 1942
16、8-2959.United StatesThis international standard was developed in accordance with internationally recognized principles 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 3.1.1 can,nthe container used to encapsulate the powderduring the pressure consolidation process that is removedpartially or fully from the final part.3.1.2 compact
