【英文标准名称】:StandardSpecificationforSeamless,Welded,andHeavilyColdWorkedAusteniticStainlessSteelPipes
【原文标准名称】:无缝、焊接和强冷加工奥氏体不锈钢管用标准规范
【标准号】:ASTMA312/A312M-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】:奥氏体的;奥氏体钢;管道;管;有缝管;无缝管;钢;焊接
【英文主题词】:Austenitic;Austeniticsteels;Pipelines;Pipes;Seamedpipes;Seamlesspipes;Steels;Welding
【摘要】:?1.1Thisspecificationcoversseamless,straight-seamwelded,andheavilycoldworkedweldedausteniticstainlesssteelpipeintendedforhigh-temperatureandgeneralcorrosiveservice.NOTE1—Whentheimpacttestcriterionforalow-temperatureservicewouldbe15ft·lbf[20J]energyabsorptionor15mils[0.38mm]lateralexpansion,someoftheausteniticstainlesssteelgradescoveredbythisspecificationareacceptedbycertainpressurevesselorpipingcodeswithoutthenecessityofmakingtheactualtest.Forexample,GradesTP304,TP304L,andTP347areacceptedbytheASMEPressureVesselCode,SectionVIIIDivision1,andbytheChemicalPlantandRefineryPipingCode,ANSIB31.3,forserviceattemperaturesaslowas?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,TP309H,TP309HCb,TP310H,TP310HCb,TP316H,TP321H,TP347H,andTP348HaremodificationsofGradesTP304,TP309Cb,TP309S,TP310Cb,TP310S,TP316,TP321,TP347,andTP348,andareintendedforserviceattemperatureswherecreepandstressrupturepropertiesareimportant.1.3Optionalsupplementaryrequirementsareprovidedforpipewhereagreaterdegreeoftestingisdesired.Thesesupplementaryrequirementscallforadditionalteststobemadeand,whendesired,itispermittedtospecifyintheorderoneormoreofthesesupplementaryrequirements.1.4TableX1.1liststhestandardizeddimensionsofweldedandseamlessstainlesssteelpipeasshowninANSIB36.19.?Thesedimensionsarealsoapplicabletoheavilycoldworkedpipe.Pipehavingotherdimensionsispermittedtobeorderedandfurnishedprovidedsuchpipecomplieswithallotherrequirementsofthisspecification.1.5GradesTP321andTP321Hhavelowerstrengthrequire-mentsforpipemanufacturedbytheseamlessprocessinnominalwallthicknessesgreaterthan3?8in.[9.5mm].1.6Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.Theinch-poundunitsshallapplyunlessthe“M”designationofthisspecificationisspecifiedintheorder.NOTE2—ThedimensionlessdesignatorNPS(nominalpipesize)hasbeensubstitutedinthisstandardforsuchtraditionaltermsas“nominaldiameter,”“size,”and“nominalsize.”
【中国标准分类号】:
【国际标准分类号】:23_040_10
【页数】:12P;A4
【正文语种】:英语