【英文标准名称】:StandardTestMethodsforImpactTestingofCastIrons(Metric)
【原文标准名称】:铸铁冲击试验用标准试验方法
【标准号】:ASTMA327M-1991(2006)
【标准状态】:现行
【国别】:
【发布日期】:1991
【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】:A04.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1Thesetestmethodsforimpacttestingcoverthedetailsofapparatus,testspecimensandproceduresforcastiron,includinggrayiron,whiteiron,malleableiron,ductileiron,andaustemperedductileiron,butnotincludingchilledrollsorrollswithwhiteironskins.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Acompanionstandard,A327,listsvaluesininch-poundunits.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.3TheCharpy-typeimpacttestshallbeemployedfortestinggrayandwhiteirons.1.4Eitherthestandardnotchedorunnotchedcharpyimpacttestshallbeemployedintestingofmalleableorductileirons.SelectionofthetypebarisdependentuponthespecificmaterialtobeevaluatedasdefinedinSection.1.5Bothtypesofcharpybarshavebeendesignatedtocharacterizethefracturetoughnessofirons.Theunnotchedcharpybar,whentested,willproducesubstantiallyhigherenergyvaluesthanthenotchbartype.Theunnotchedbaristhereforespecifiedfortestingironsthathavelowfracturetoughnesscharacteristics.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:3P.;A4
【正文语种】: