【英文标准名称】:StandardSpecificationforSteelForgings,Microalloy,forGeneralIndustrialUse
【原文标准名称】:一般工业用微量合金钢锻件的标准规范
【标准号】:ASTMA909/A909M-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:A01.06
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:锻造程序;微量合金;钢锻件
【英文主题词】:forgingprocedure;microalloyed;steelforgings
【摘要】:1.1Thisspecificationcoverswrought,microalloyedcarbonsteelforgingsforindustrialuse.Microalloyedsteelsdeveloptheirpropertiesbytheadditionofsmallamountsofmicroalloyingelementssuchasvanadium,columbium,titanium,ormolybdenum.Thepropertiesmaybeinfluencedalsobycontrolofthehotworkingprocessandtemperatureandbycontrolofthesubsequentcoolingrate.1.2Theforgingsshallbefurnishedtochemicalcompositionandmechanicalpropertyrequirementsasspecifiedherein.Chemicalcompositionisbasedonstandardcarbonsteelgradesmodifiedtoincludemicroalloyingelements.Strengthlevelisspecifiedbasedondesiredmechanicalpropertiesintheforgings.Dependingontheforgingprocess,differentstrengthclassesmaybeattainablefromasinglechemicalcomposition.Conversely,mechanicalpropertiesofagivenstrengthclassmaybeachievedusingdifferentchemicalcompositions.Themanufacturershouldbeconsultedifdevelopmentofchemicalcompositionisnecessary.1.3Forthepurposeofthisspecification,forgingswithmaximumsectionthicknessof4in.[100mm]aretobeconsidered.1.4SupplementaryRequirementsS1toS8areprovidedforusewhenadditionalcontrolsorrequirementsaredesired.Theseshallapplyonlywhenspecifiedonthepurchaseorder.1.5Thevaluesstatedineitherinch-poundunitsorSI(metric)unitsaretoberegardedseparatelyasstandard.Withinthetextandtables,SIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisspecification.1.6Unlesstheorderspecifiestheapplicable"M"specificationdesignation,thematerialshallbefurnishedtotheinch-poundunits.
【中国标准分类号】:J32
【国际标准分类号】:77_140_85
【页数】:4P.;A4
【正文语种】: