BS EN ISO 2639-2002 钢.渗碳层和硬化层的深度的测定和检验

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【英文标准名称】:Steels-Determinationandverificationofthedepthofcarburizedandhardenedcases
【原文标准名称】:钢.渗碳层和硬化层的深度的测定和检验
【标准号】:BSENISO2639-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-11-27
【实施或试行日期】:2002-11-27
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:厚度;维氏硬度测量;洛氏硬度测量;渗碳;维氏硬度;尺寸测量;硬度测量;试验;努氏硬度;钢;外层淬火
【英文主题词】:Carburizing;Casehardness;Case-hardening;Definition;Definitions;Dimensionalmeasurement;Hardnessmeasurement;Knoophardness;Rockwellhardnessmeasurement;Steels;Testing;Tests;Thickness;Vickershardness;Vickershardnessmeasurement
【摘要】:ThisInternationalStandarddefinesthecase-hardeneddepth,andspecifiesmethodsforthedeterminationofthisdepth,insteel.Itisapplicabletoa)carburizedcasesandcarbonitridedcases;b)partsthat,whenheattreatedtofinalhardness,haveahardnessoflessthan450HV1atadistanceofthreetimesthecase-hardeneddepth,fromthesurface.Thecase-hardeneddepthisdefinedbyspecialagreementwheretheseconditionsarenotmet.Forsteelsthat,inthepartundertest,andatadistanceofthreetimesthecase-hardeneddepthfromthesurface,presentahardnessgreaterthan450HV1,thecriterioncanstillbeused,providedthatalimitinghardnessvaluegreaterthan550HV1-instepsof25units-beselectedforthecase-hardeneddepth.
【中国标准分类号】:H11
【国际标准分类号】:77_040_99
【页数】:14P;A4
【正文语种】:英语