ASTM A790/A790M-2010 无缝与焊接铁素体/奥氏体不锈钢管的标准规格

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【英文标准名称】:StandardSpecificationforSeamlessandWeldedFerritic/AusteniticStainlessSteelPipe
【原文标准名称】:无缝与焊接铁素体/奥氏体不锈钢管的标准规格
【标准号】:ASTMA790/A790M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:双相不锈钢;铁/奥氏体不锈钢;无缝钢管;不锈钢管;钢管;焊接钢管
【英文主题词】:duplexstainlesssteel;ferritic/austeniticstainlesssteel;seamlesssteelpipe;stainlesssteelpipe;steelpipe;weldedsteelpipe
【摘要】:Thistestmethodmaybeusedforproductdevelopmentanddesign,productionvalidation,manufacturingprocesscontrol,lotacceptance,orforacombinationthereof.Therateofinflationinthismethoddoesnotattempttomimicthatofanactualcushiondeployment,norisitintendedtosubjectthecushiontothedynamicloads,stress,andtemperaturesduringsuchanevent.Itisalsorecognizedthatthecompressedairusedforthistestsmaynotleakthroughthecushionatthesamerateasthegasormixtureofgassestypicallyusedincushioninflators.Ratherthismethodisintendedtogivearelativeindicationofthepressureholdingabilityofthecushion.Theinternalvolumeandinternaldesignofcushionsvariesgreatly.Thistestmethodismostusefulwhencomparingdatafromcushionsofthesamedesignandvolume.Thistestmethoddoesnotprovideanydataconcerningthevolumeofgasleakingfromthebag.Atcertainhigherlevelsoftheinitialinternalpressure,thistestmethodwillirreversiblydamagethecushionandchangeitsleakagepropertiesforfuturetestingorforcommercialuse.Thedamagetothebagisdependentonthedesignorshapeofaspecificbagandthetypeofcoatingapplied.Itistheresponsibilityofthesupplierand/orpurchasertodetermineiftheparametersunderwhichacushionistestedwillbedestructiveandrenderthecushionunfitforfutureuseWithinthelimitsofvarianceexpressedinSection12,thistestmethodisusefulfordesignandproductionvalidationandmaybesuitableforincorporationinacushionspecificationorforlotacceptancetestingofcommercialshipments.1.1Thisspecificationcoversseamlessandstraight-seamweldedferritic/austeniticsteelpipeintendedforgeneralcorrosiveservice,withparticularemphasisonresistancetostresscorrosioncracking.Thesesteelsaresusceptibletoembrittlementifusedforprolongedperiodsatelevatedtemperatures.1.2Optionalsupplementaryrequirementsareprovidedforpipewhenagreaterdegreeoftestingisdesired.Thesesupplementaryrequirementscallforadditionalteststobemadeand,whendesired,oneormoreofthesemaybespecifiedintheorder.1.3AppendixX1ofthisspecificationliststhedimensionsofweldedandseamlessstainlesssteelpipeasshowninANSIB36.19.Pipehavingotherdimensionsmaybefurnishedprovidedsuchpipecomplieswithallotherrequirementsofthisspecification.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.Theinch-poundunitsshallapplyunlesstheMdesignationofthisspecificationisspecifiedintheorder.Note18212;ThedimensionlessdesignatorNPS(nominalpipesize)hasbeensubstitutedinthisstandardforsuchtraditionaltermsasnominaldiameter,size,andnominalsize.
【中国标准分类号】:H48
【国际标准分类号】:23_040_10
【页数】:9P.;A4
【正文语种】: