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【英文标准名称】:StandardSpecificationforElectric-Resistance-WeldedFerriticAlloy-SteelBoilerandSuperheaterTubes
【原文标准名称】:锅炉和过热器用电阻焊铁素体合金钢管的标准规范
【标准号】:ASTMA250/A250M-2005(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:A01.10
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:boilertube;resistanceweldedsteeltube;steeltube,alloy;superheatertube;weldedsteeltube;Boiler/superheatertubes--specifications;Carbon-molybdenumalloysteel--specifications;Carbonsteeltube--specifications;Chromiumalloysteel--specificat
【摘要】:1.1Thisspecificationcoversseveralgrades,designatedT1,T1a,T1b,T2,T11,T12andT22,ofminimum-wall-thickness,electric-resistance-welded,carbon-molybdenumandchromium-molybdenumalloy-steel,boilerandsuperheatertubes.1.2Thetubingsizesandthicknessesusuallyfurnishedtothisspecificationarex00BD;to5in.[12.7to127mm]inoutsidediameterand0.035to0.320in.[0.9to8.1mm],inclusive,inminimumwallthickness.Tubinghavingotherdimensionsmaybefurnished,providedsuchtubescomplywithallotherrequirementsofthisspecification.1.3Mechanicalpropertyrequirementsdonotapplytotubingsmallerthan1/8in.[3.2mm]ininsidediameteror0.015in.[0.4mm]inthickness.1.4Anoptionalsupplementaryrequirementisprovidedfornon-destructiveexaminationforcertainASMEapplications.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretobereaagrdedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5.1Withinthetext,theSIunitsareshowninbrackets.1.5.2Theinch-poundunitsshallapplyunlessthex201C;Mx201D;designationofthisspecificationisspecifiedintheorder.
【中国标准分类号】:H48
【国际标准分类号】:23_040_10
【页数】:4P.;A4
【正文语种】:英语