【英文标准名称】:StandardSpecificationforCold-FormedWeldedandSeamlessHigh-Strength,Low-AlloyStructuralTubingwithImprovedAtmosphericCorrosionResistance
【原文标准名称】:具有增强耐大气腐蚀性能的冷成型焊接与无缝高强度低合金结构管标准规格
【标准号】:ASTMA847/A847M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:Alloysteeltube--specifications;Atmosphericcorrosionmaterials/applications--specifications;Bridge/structuralmaterials--specifications;Cold-formedsteeltube--specifications;Corrosion--metals/alloys;Corrosiveserviceapplications--tube(steel);HS
【摘要】:1.1Thisspecificationcoverscold-formedweldedandseamlesshigh-strength,low-alloyround,square,rectangular,orspecialshapedstructuraltubingforwelded,riveted,orboltedconstructionofbridgesandbuildingsandforgeneralstructuralpurposeswherehighstrengthandenhancedatmosphericcorrosionresistancearerequired(Note1).Theatmosphericcorrosionresistanceofthissteelinmostenvironmentsissubstantiallybetterthancarbonsteelwithorwithoutcopperaddition(Note2).Whenproperlyexposedtotheatmosphere,thissteelcanbeusedbare(unpainted)formanyapplications.Whenthissteelisusedinweldedconstruction,theweldingprocedureshallbesuitableforthesteelandtheintendedservice.1.2Thistubingisproducedinweldedsizeswithamaximumperipheryof64in.[1626mm]andamaximumwallof0.625in.[15.9mm],andinseamlesswithamaximumperipheryof32in.[813mm]andamaximumwallof0.500in.[12.7mm].Tubinghavingotherdimensionsmaybefurnishedprovidedsuchtubingcomplieswithallotherrequirementsofthisspecification.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.Note18212;Productsmanufacturedtothisspecificationmaynotbesuitableforthoseapplicationswherelowtemperaturenotchtoughnesspropertiesmaybeimportant,suchasdynamicallyloadedelementsinweldedstructures,etc.Note28212;FormethodsofestimatingtheatmosphericcorrosionresistanceoflowalloysteelsseeGuideG101oractualdata.
【中国标准分类号】:
【国际标准分类号】:23_040_10;23_040_40
【页数】:5P.;A4
【正文语种】: