【英文标准名称】:SpecificationforSeamlessandWeldedAusteniticStainlessSteelPipes
【原文标准名称】:无缝和焊接奥氏体不锈钢管规范
【标准号】:ANSI/ASTMA312/A312M-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:钢;管
【英文主题词】:steels;pipes
【摘要】:Thisspecificationcoversseamless,straight-seamwelded,andheavilycoldworkedweldedausteniticstainlesssteelpipeintendedforhigh-temperatureandgeneralcorrosiveservice.Note1&8212;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].GradesTP304H,TP309H,TP309HCb,TP310H,TP310HCb,TP316H,TP321H,TP347H,andTP348HaremodificationsofGradesTP304,TP309Cb,TP309S,TP310Cb,TP310S,TP316,TP321,TP347,andTP348,andareintendedforhigh-temperatureservice.Optionalsupplementaryrequirementsareprovidedforpipewhereagreaterdegreeoftestingisdesired.Thesesupplementaryrequirementscallforadditionalteststobemadeand,whendesired,oneormoreofthesemaybespecifiedintheorder.TableX1.1liststhestandardizeddimensionsofweldedandseamlessstainlesssteelpipeasshowninANSIB36.19.Thesedimensionsarealsoapplicabletoheavilycoldworkedpipe.Pipehavingotherdimensionsmaybefurnishedprovidedsuchpipecomplieswithallotherrequirementsofthisspecification.GradesTP321andTP321Hhavelowerstrengthrequirementsforpipemanufacturedbytheseamlessprocessinnominalwallthicknessesgreaterthan3/8in.[9.5mm].Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.Theinch-poundunitsshallapplyunlessthe"M"designationofthisspecificationisspecifiedintheorder.Note2&8212;ThedimensionlessdesignatorNPS(nominalpipesize)hasbeensubstitutedinthisstandardforsuchtraditionaltermsas"nominaldiameter,""size,"and"nominalsize."
【中国标准分类号】:H48
【国际标准分类号】:23_040_10
【页数】:
【正文语种】:英语
基本信息
| 标准名称： | ME642A电平和衰减校准装置检定规程 |
| 中标分类： |
综合 >>
计量 >>
电磁计量 |
| 发布日期： | |
| 实施日期： | 1999-08-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
适用范围
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前言
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引用标准
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所属分类： 综合 计量 电磁计量