ASTM B474-2003 电熔焊镍和镍合金管标准规范

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【英文标准名称】:StandardSpecificationforElectricFusionWeldedNickelandNickelAlloyPipe
【原文标准名称】:电熔焊镍和镍合金管标准规范
【标准号】:ASTMB474-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:B02.07
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:fusionwelded;high-temperaturealloy;pipe
【摘要】:1.1Thisspecificationcoverselectricfusionweldedpipesuitableforhigh-temperatureorcorrosiveserviceaslistedin.(Althoughnorestrictionsareplacedonthesizesofpipethatmaybefurnishedunderthisspecification,commercialpracticeiscommonlylimitedtosizesnotlessthan8in.(203mm)nominaldiameter.)1.2Fiveclassesofpipearecoveredasfollows:1.2.1Class1--Pipeshallbedoubleweldedbyprocessesemployingfillermetalinallpassesandshallbecompletelyradiographed.1.2.2Class2--Pipeshallbedoubleweldedbyprocessesemployingfillermetalinallpasses.Noradiographyisrequired.1.2.3Class3--Pipeshallbesingleweldedbyprocessesemployingfillermetalinallpassesandshallbecompletelyradiographed.1.2.4Class4--SameasClass3exceptthattheweldpassexposedtotheinsidepipesurfacemaybemadewithouttheadditionoffillermetal.1.2.5Class5--Pipeshallbedoubleweldedbyprocessesemployingfillermetalinallpassesandshallbespotradiographed.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheetforthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:77_150_40
【页数】:8P.;A4
【正文语种】: