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【英文标准名称】:StandardSpecificationforCold-WorkedWeldedAusteniticStainlessSteelPipe
【原文标准名称】:冷加工焊接奥氏体不锈钢管用标准规范
【标准号】:ASTMA814/A814M-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-04
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:奥氏体钢;冷加工;管;不锈的;钢;焊接的
【英文主题词】:Austeniticsteels;Cold-working;Pipes;Stainless;Steels;Welded
【摘要】:?1.1Thisspecificationcoverstwoclassesofflangedandcold-bendingqualitycold-workedstraight-seamsingleordoubleweldedausteniticsteelpipeintendedforhigh-temperatureandgeneralcorrosiveservices.NOTE1—Whentheimpacttestcriterionforalow-temperatureservicewouldbe15ft·lbf[20J]energyabsorptionor15mils[0.38mm]lateralexpansion,someoftheausteniticstainlesssteelgradescoveredbythisspecificationareacceptedbycertainpressurevesselorpipingcodeswithoutthenecessityofmakingtheactualtest.Forexample,Grades304,304L,and347areacceptedbytheASMEPressureVesselCode,SectionVIIIDivision1,andbytheChemicalPlantandRefineryPipingCode,ANSIB31.3forserviceattemperaturesaslowas?425°F[?250°C]withoutqualificationbyimpacttests.OtherAISIstainlesssteelgradesareusuallyacceptedforservicetemperaturesaslowas?325°F[?200°C]withoutimpacttesting.Impacttestingmay,undercertaincircumstances,berequired.Forexample,materialswithchromiumornickelcontentoutsidetheAISIranges,andformaterialwithcarboncontentexceeding0.10%,arerequiredtobeimpacttestedundertherulesofASMESectionVIIIDivision1whenservicetemperaturesarelowerthan?50°F[?45°C].1.2GradesTP304H,TP304N,TP316H,TP316N,TP321H,TP347H,andTP348HaremodificationsofGradesTP304,TP316,TP321,TP347,andTP348,andareintendedforhigh-temperatureservice.1.3Twoclassesofpipearecoveredasfollows:1.3.1ClassSW—Pipe,single-weldedwithnoadditionoffillermetaland1.3.2ClassDW—Pipe,double-weldedwithnoadditionoffillermetal.1.4Optionalsupplementaryrequirementsareprovidedforpipewhereagreaterdegreeoftestingisdesired.Thesesupplementaryrequirementscallforadditionalteststobemadeand,whendesired,oneormoreofthesemaybespecifiedintheorder.1.5Table1liststhedimensionsofcold-workedsingle-ordouble-weldedstainlesssteelpipe.Pipehavingotherdimensionsmaybefurnishedprovidedsuchpipecomplieswithallotherrequirementsofthisspecification.?1.6Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.Theinch-poundunitsshallapplyunlessthe“M”designationofthisspecificationisspecifiedintheorder.
【中国标准分类号】:
【国际标准分类号】:23_040_10
【页数】:6P;A4
【正文语种】:英语