【英文标准名称】:StandardSpecificationforAs-WeldedWroughtAusteniticStainlessSteelFittingsforGeneralCorrosiveServiceatLowandModerateTemperatures
【原文标准名称】:低温和中等温度条件下的一般腐蚀性服务用焊接锻造奥氏体不锈钢配件标准规范
【标准号】:ASTMA774/A774M-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:A01.22
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:奥氏体不锈钢;腐蚀条件应用;管配件.钢;管应用;不锈钢配件;温度条件应用.低;奥氏体不锈钢配件.规范;腐蚀条件应用.钢管;腐蚀性.水;低温条件应用;不锈钢配件.规范;不锈钢管.规范;钢配件.规范;水腐蚀性;焊接钢管.规范;锻造钢配件.规范
【英文主题词】:austeniticstainlesssteel;corrosiveserviceapplications;pipefittings-steel;pipingapplications;stainlesssteelfittings;temperatureserviceapplications-low;Austeniticstainlesssteelfittings--specifications;Corrosiveserviceapplications--pipe
【摘要】:1.1Thisspecificationcoversfivegradesofas-welded,wroughtausteniticstainlesssteelfittingsforlow-pressurepipingandintendedforlowandmoderatetemperaturesandgeneralcorrosiveservice.Usersshouldnotethatcertaincorrosiveconditionsmayrestricttheuseofoneormoregrades.Forapplicationsrequiringaproductthatrequiresheattreatmentorfullpressurerating,refertoSpecificationA403/A403M.Thetermx201C;fittingsx201D;appliestobuttandsocketweldingpartssuchas45x00B0;and90x00B0;elbows,tees,reducers,wyes,laterals,crosses,andstubends.1.2Thisspecificationcoversas-weldedfittings3through48in.[75through1225mm]inoutsidediameterandinnominalwallthicknesses0.062through0.500in.[1.6through12.7mm].Table1andTable2listthecommondiametersandnominalthicknessesoffittingsinthisspecification.1.3Thisspecificationdoesnotapplytocastfittings.CastausteniticsteelfittingsarecoveredbySpecificationA351/A351M.1.4Optionalsupplementaryrequirementsareprovidedforfittingswhereagreaterdegreeofexaminationisdesired.Thesesupplementaryrequirementscallforadditionaltests.Whendesired,oneormoreofthesemaybespecifiedintheorder.1.5Thisspecificationisexpressedinbothinch-poundunitsandinSIunits.However,unlesstheorderspecifiestheapplicablex201C;Mx201D;specificationdesignation(SIunits),thematerialshallbefurnishedtoinch-poundunits.1.6ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.
【中国标准分类号】:J31
【国际标准分类号】:77_140_20
【页数】:4P.;A4
【正文语种】: