【英文标准名称】:StandardPracticeforMacroetchTestingofConsumableElectrodeRemeltedSteelBarsandBillets
【原文标准名称】:自耗电极再融化钢棒与钢坯的宏观腐蚀试验方法用标准规范
【标准号】:ASTMA604/A604M-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:A01.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:自耗电极再融化;电渣重熔;黑斑;宏观腐蚀;射线隔离;循环结构;隔离;真空电弧重熔;白斑
【英文主题词】:consumableelectroderemelting;electroslagremelting;freckles;macroetching;radialsegregation;ringpattern;segregation;vacuumarcremelting;whitespots
【摘要】:Macroetchtesting,asdescribedherein,isamethodforexaminingandratingtransversesectionsofbarsandbilletstodescribecertainconditionsofmacrosegregationwhichareoftencharacteristicofconsumableelectroderemeltedmaterials.ThispracticeisnotintendedtodefinemajordefectssuchasthosedescribedbyMethodE381.1.1Thispracticecoverstestingandinspectionandisapplicabletobars,billets,andbloomsofcarbon,alloy,andstainlesssteelwhichhavebeenconsumableelectroderemelted.1.2Forthepurposeofthispractice,theconsumableelectroderemeltingprocessisdefinedasasteelrefiningmethodwhereinsingleormultipleelectrodesareremeltedintoacrucibleproducinganingotwhichissuperiortotheoriginalelectrodebyvirtueofimprovedcleanlinessorlowergascontentorreducedchemicalornonmetallicsegregation.Seeandfordescriptionsofapplicableremeltingprocesses.1.3Thispracticeandtheaccompanyingcomparisonmacrographsaregenerallyapplicabletosteelbarandbilletsizesupto225in.2[1450cm2]intransversecrosssection.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H44
【国际标准分类号】:77_140_60
【页数】:15P.;A4
【正文语种】: