ASTM C748-1998(2010)e1 石墨材料洛氏硬度的标准试验方法
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【英文标准名称】:StandardTestMethodforRockwellHardnessofGraphiteMaterials
【原文标准名称】:石墨材料洛氏硬度的标准试验方法
【标准号】:ASTMC748-1998(2010)e1
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D02.F0
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:碳;石墨;硬度;硬度计压头
【英文主题词】:carbon;graphite;hardness;indenter
【摘要】:ARockwellLscalehardnessnumberisanumberderivedfromthenetincreaseindepthofimpressionastheloadona6.3500x00B1;0.0025-mmdiametersteel-ballindenterisincreasedfromafixed10-kgminorloadtoa60-kgmajorloadandthenreturnedtotheminorload.ARockwellhardnessnumberisdirectlyrelatedtotheindentationhardnessofamaterial;thehighertheRockwellLscalereading,theharderthematerial.Thetestisusefulintheevaluationandthemanufacturingcontrolofcarbonandgraphitematerials.1.1ThistestmethodcoversRockwellLscalehardnesstestingofgraphitematerialswithgrainsizelessthan0.8mmandahardnessrangebetween0and120.1.2TestMethodsE18shallbefollowedexceptwhereotherwiseindicated.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:71_060_10
【页数】:3P.;A4
【正文语种】:
【原文标准名称】:石墨材料洛氏硬度的标准试验方法
【标准号】:ASTMC748-1998(2010)e1
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D02.F0
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:碳;石墨;硬度;硬度计压头
【英文主题词】:carbon;graphite;hardness;indenter
【摘要】:ARockwellLscalehardnessnumberisanumberderivedfromthenetincreaseindepthofimpressionastheloadona6.3500x00B1;0.0025-mmdiametersteel-ballindenterisincreasedfromafixed10-kgminorloadtoa60-kgmajorloadandthenreturnedtotheminorload.ARockwellhardnessnumberisdirectlyrelatedtotheindentationhardnessofamaterial;thehighertheRockwellLscalereading,theharderthematerial.Thetestisusefulintheevaluationandthemanufacturingcontrolofcarbonandgraphitematerials.1.1ThistestmethodcoversRockwellLscalehardnesstestingofgraphitematerialswithgrainsizelessthan0.8mmandahardnessrangebetween0and120.1.2TestMethodsE18shallbefollowedexceptwhereotherwiseindicated.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:71_060_10
【页数】:3P.;A4
【正文语种】:
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