【英文标准名称】:StandardSpecificationforHigh-StrengthLow-AlloySteelShapesofStructuralQuality,ProducedbyQuenchingandSelf-TemperingProcess(QST)
【原文标准名称】:经淬火和自回火(QST)处理的高强度低合金结构级钢型材的标准规范
【标准号】:ASTMA913/A913M-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】:A01.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:high-strengthlow-alloysteel;QST;quenchingandself-temperingprocess;steelshapes;structuralshapes;structuralsteel
【摘要】:1.1Thisspecificationcovershigh-strengthlow-alloystructuralsteelshapesinGrades50[345],60[415],65[450]and70[485],producedbythequenchingandself-temperingprocess(QST).Theshapesareintendedforriveted,boltedorweldedconstructionofbridges,buildingsandotherstructures.1.2TheQSTprocessconsistsofinlineheattreatmentandcoolingratecontrolswhichresultinmechanicalpropertiesinthefinishedconditionthatareequivalenttothoseattainedusingheattreatingprocesseswhichentailreheatingafterrolling.AdescriptionoftheQSTprocessisgiveninAppendixX1.1.3DuetotheinherentcharacteristicsoftheQSTprocess,theshapesshallnotbeformedandpostweldheattreatedattemperaturesexceeding1100176;F[600176;C].1.4Whenthesteelistobewelded,itispresupposedthataweldingproceduresuitableforthegradeofsteelandintendeduseorservicewillbeutilized.SeeAppendixX3ofSpecificationA6/A6Mforinformationonweldability.1.5Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisspecification.
【中国标准分类号】:H44
【国际标准分类号】:77_140_70
【页数】:4P.;A4
【正文语种】:英语