作者:标准资料网 时间:2024-05-20 06:39:50   浏览:9462   来源:标准资料网

【英文标准名称】:StandardSpecificationforElectric-Fusion-WeldedAusteniticChromium-NickelStainlessSteelPipeforHigh-TemperatureServiceandGeneralApplications
【原文标准名称】:高温用和一般用途的电熔焊奥氏体铬镍不锈钢管的标准规范
【标准号】:ASTMA358/A358M-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】:合金钢;奥氏体的;铬;电焊;镍;管;钢;温度
【英文主题词】:Alloysteels;Austenitic;Chromium;Electricwelding;Nickel;Pipes;Steels;Temperature
【摘要】:?1.1Thisspecificationcoverselectric-fusion-weldedauste-niticchromium-nickelstainlesssteelpipesuitableforcorrosiveorhigh-temperatureservice,orboth,orforgeneralapplications.NOTE1—ThedimensionlessdesignatorNPS(nominalpipesize)hasbeensubstitutedinthisstandardforsuchtraditionaltermsas“nominaldiameter,”“size,”and“nominalsize.”1.2ThisspecificationcoversthegradesofalloyandstainlesssteellistedinTable1.Theselectionofthepropergradeandrequirementsforheattreatmentshallbeatthediscretionofthepurchaser,dependentontheserviceconditionstobeencountered.1.3Fiveclassesofpipearecoveredasfollows:1.3.1Class1—Pipeshallbedoubleweldedbyprocessesemployingfillermetalinallpassesandshallbecompletelyradiographed.1.3.2Class2—Pipeshallbedoubleweldedbyprocessesemployingfillermetalinallpasses.Noradiographyisrequired.1.3.3Class3—Pipeshallbesingleweldedbyprocessesemployingfillermetalinallpassesandshallbecompletelyradiographed.1.3.4Class4—SameasClass3exceptthattheweldpassexposedtotheinsidepipesurfacemaybemadewithouttheadditionoffillermetal(see6.2.2.1and6.2.2.2).1.3.5Class5—Pipeshallbedoubleweldedbyprocessesemployingfillermetalinallpassesandshallbespotradio-graphed.1.4Supplementaryrequirementscoveringprovisionsrangingfromadditionaltestingtoformalizedproceduresformanufacturingpracticeareprovided.SupplementaryRequirementsS1throughS6areincludedasoptionstobespecifiedwhendesired.?1.5Thevaluesstatedineitherinch-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】:7P;A4
【正文语种】:英语