ASTM B491/B491M-2006 通用铝和铝合金挤制圆管的标准规范

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【英文标准名称】:StandardSpecificationforAluminumandAluminum-AlloyExtrudedRoundTubesforGeneral-PurposeApplications
【原文标准名称】:通用铝和铝合金挤制圆管的标准规范
【标准号】:ASTMB491/B491M-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:B07.03
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:aluminumalloy;extrudedroundtubes
【摘要】:1.1Thisspecificationcoversaluminumandaluminum-alloyextrudedroundtubeseitherincoilsorstraightlengths,forgeneralpurposeapplicationssuchasrefrigerationservice,gaslines,oillines,andinstrumentlines,inthealloys(Note0)andtempersshownin[],inoutsidediametersof0.250through0.750in.[6.00through20.00mm].Fordiametersover0.500through0.750in.[over12.50through20.00mm],thediameterandwall-thicknesstolerancesandeddy-currenttestparameters,ifrequired,shallbeagreeduponbytheproducerandthepurchaser.Onlytubesinaluminum1200-H111and1235-H111aresizedafterextrusiontominimizeovalness.1.2AlloyandtemperdesignationsareinaccordancewithANSIH35.1[H35.1M].TheequivalentUnifiedNumberingSystemalloydesignationsarethoseofprecededbyA9(forexample,A91050foraluminum1050)inaccordancewithPracticeE527.Note2ForextrudedtubesseeSpecificationB221,andfordrawntubesforgeneral-purposeapplicationsseeSpecificationB483.Note0Throughoutthisspecificationthetermalloyinthegeneralsenseincludesaluminumaswellasaluminumalloy.Note3Forinch-poundordersspecifyB491;formetricordersspecifyB491M.Donotmixunits.1.3Foracceptancecriteriaforinclusionofnewaluminumandaluminumalloysinthisspecification,see.1.4Thevaluesstatedineitherinch-poundorSIunitsaretoberegardedseparatelyasstandards.TheSIunitsareshowneitherinbracketsorinseparatetables.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromtwosystemswillresultinnonconformancewiththespecification.
【中国标准分类号】:H61
【国际标准分类号】:23_040_15
【页数】:6P.;A4
【正文语种】:英语