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【英文标准名称】:StandardSpecificationforSteelCastings,Stainless,PrecipitationHardening
【原文标准名称】:沉淀硬化不锈钢铸件的标准规范
【标准号】:ASTMA747/A747M-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:A01.18
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:precipitationhardeningstainlesssteel;stainlesssteel;steelcastings
【摘要】:1.1Thisspecificationcoversiron-chromium-nickel-coppercorrosion-resistantsteelcastings,capableofbeingstrengthenedbyprecipitationhardeningheattreatment.1.2Thesecastingsmaybeusedinservicesrequiringcorrosionresistanceandhighstrengthsattemperaturesupto600176;F[315176;C].Theymaybemachinedinthesolution-annealedconditionandsubsequentlyprecipitationhardenedtothedesiredhigh-strengthmechanicalpropertiesspecifiedinTable1withlittledangerofcrackingordistortion.1.3Thematerialisnotintendedforuseinthesolution-annealedcondition.Note1-Iftheserviceenvironmentinwhichthematerialistobeusedisconsideredconducivetostress-corrosioncracking,precipitationhardeningshouldbeperformedatatemperaturethatwillminimizethesusceptibilityofthematerialtothistypeofattack.1.4Supplementaryrequirementsofanoptionalnatureareprovidedforuseattheoptionofthepurchaser.TheSupplementaryrequirementsshallapplyonlywhenspecifiedindividuallybythepurchaserinthepurchaseorderorcontract.1.5Thisspecificationisexpressedinbothinch-poundunitsandinSIunits;however,unlessthepurchaseorderorcontractspecifiestheapplicableMspecificationdesignation(SIunits),theinch-poundunitsshallapply.Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.
【中国标准分类号】:J31
【国际标准分类号】:77_140_80
【页数】:4P.;A4
【正文语种】:英语