ASTM A720/A720M-2002(2007) 无取向电工钢延展性的标准试验方法

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【英文标准名称】:StandardTestMethodforDuctilityofNonorientedElectricalSteel
【原文标准名称】:无取向电工钢延展性的标准试验方法
【标准号】:ASTMA720/A720M-2002(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:A06.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ductility;electrical;nonoriented;silicon;steel;Ductility--metals/alloys;Electricalsteel(non-oriented);Nonorientedelectricalsteel;Steelsheet(electrical)
【摘要】:ThisisaspecializedbendtestfornonorientedelectricalsteelnotcoveredundertheprovisionsofTestMethodsE290.ThistestisapplicabletononorientedsiliconsteelsuchasdescribedinSpecificationsA677/A677MandA683/A683Mincommercialthicknesses.Itisnotintendedtobeappliedtosteelsconsideredinherentlyductile.1.1ThistestmethodcoversdeterminationofductilityutilizingEpsteinteststripsandabendingdeviceforbendingthestripoverapredeterminedradius.Itisintendedforcommercialsilicon-bearingsteelsheetorstripofnonorientedtypesinthethicknessrangefrom0.010to0.031in.[0.25to0.79mm],inclusive.1.2Thevaluesandequationsstatedincustomary(cgs-emuandinch-pound)orSIunitsaretoberegardedseparatelyasstandard.Withinthistestmethod,SIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththistestmethod.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H53
【国际标准分类号】:77_140_50
【页数】:2P.;A4
【正文语种】:英语