ISO 156-1982 金属材料.硬度试验.布氏硬度试验机的验证

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【英文标准名称】:StandardSpecificationforElectric-Fusion(Arc)-WeldedSteelPipe(NPS4andOver)
【原文标准名称】:电熔(电弧)焊钢管(NPS4及以上的)标准规范
【标准号】:ASTMA139/A139M-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:A01.09
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:arcweldedsteelpipe;fusionweldedsteelpipe;steelpipe;weldedsteelpipe;Electric-fusion-weldedsteelpipe;Gaspressuresystems/applications--specifications;Liquidconveyance;Vaportransmission;Weldedsteelpipe--specifications
【摘要】:1.1Thisspecificationcoversfivegradesofelectric-fusion(arc)-weldedstraight-seamorhelical-seamsteelpipe.PipeofNPS4(Note1)andlargerwithnominal(average)wallthicknessof1.0in.[25.4mm]andlessarecovered.Listingofstandardizeddimensionsareforreference(Note2).Thegradesofsteelarepipemillgradeshavingmechanicalpropertieswhichdifferfromstandardplategrades.Thepipeisintendedforconveyingliquid,gas,orvapor.Note18212;ThedimensionlessdesignatorNPS(nominalpipesize)hasbeensubstitutedinthisstandardforsuchtraditionaltermsasx201C;nominaldiameter,x201D;x201C;size,x201D;andx201C;nominalsize.x201D;Note28212;AcomprehensivelistingofstandardizedpipedimensionsiscontainedinASMEB36.10M.Note38212;Thesuitabilityofpipeforvariouspurposesissomewhatdependentonitsdimensions,properties,andconditionsofservice.Forexample,forhigh-temperatureserviceseeapplicablecodesandSpecificationA691.1.2Thevaluesstatedineitherinch-poundunitsorinSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesineachsystemarenotexactequivalents;therefore,eachsystemistobeusedindependentlyoftheother.
【中国标准分类号】:H48
【国际标准分类号】:23_040_10
【页数】:6P.;A4
【正文语种】:英语