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1、鋼材的硬度比較鋼材的硬度比較鋼材的硬度比較HardnessComparisonsfSteel與布氏硬度大致相等的硬度數(shù)值與布氏硬度大致相等的硬度數(shù)值A(chǔ)pproximateApproximateEquivalentEquivalentHardnessHardnessNumbersNumbersffBrinellBrinellHardnessHardnessNumbersNumbersffSteel(s)Steel(s)洛氏硬度數(shù)值(s)R
2、ockwellhardnessNo.(s)洛氏表面硬度數(shù)值表面金剛石錐試頭RockwellsuperficialhardnessNo.superficialbraleperat布氏壓痕直徑毫米Brinellindentationdia.mm10毫米標(biāo)準(zhǔn)球10mmStardball布氏硬度球3000公斤Hultgren球Brinellhardnessball.3000kgHultgrenball數(shù)值(b)負(fù)載碳化鎢球No.(b).load
3、Tungstencarbideball金剛石錐硬度標(biāo)號DiamondpyrahardnessNo.A刻度,60公斤負(fù)載,金剛石錐試頭Ascale60kgloadbraleperatB刻度,100公斤負(fù)載,16英寸直徑球Bscale100kgload16in.dia.ballC刻度,150公斤負(fù)載,金剛石錐試頭Cscale150kgloadbraleperatD刻度,100公斤負(fù)載,金剛石錐試頭Dscale100kgloadbralepe
4、rat15N刻度,15公斤負(fù)載15Nscale15kgload30N刻度,30公斤負(fù)載30Nscale30kgload45N刻度,45公斤負(fù)載45Nscale45kgload肖氏scelroscope硬度數(shù)值ShescelroscopehardnessNo.張力強(qiáng)度(大致為)1000psiTensilestrength(approx.)1000psi布氏壓痕直徑毫米Brinellindentationdia.mm94085.668.07
5、6.993.284.475.4972.702.752.802.852.902.953.003.053.103.153.203.253.303.353.403.453.503.553.604954774614444294154013883753633523413313213113022932855144954774614444294154013883753633523413313213113022932855345144954294154
6、0138837536335234133132131130229328556955354753953052851650849549147447245544042541039638337236035033932831930930177.877.176.976.776.476.375.975.675.174.974.374.273.472.872.071.470.670.069.368.768.167.566.966.365.765.3110
7、.0109.0108.5108.0107.5107.0106.0105.553.552.552.151.651.151.050.349.648.848.547.247.145.744.543.141.840.439.137.936.635.534.333.132.130.929.965.865.064.764.363.963.863.262.761.961.761.060.859.758.857.856.855.754.653.852.
8、851.951.050.049.348.347.687.287.286.786.586.386.085.985.685.384.984.784.184.083.482.882.081.480.079.378.678.077.376.776.175.575.071.670.770.369.969.569.468.768.267.467.266.065.864.663.562.361.159.958.757.656.455.454.353.
9、352.251.250.359.258.057.656.956.256.155.254.553.553.251.751.549.948.446.945.343.642.040.539.137.836.434.433.832.431.27170686665636159585654525150484746454327426626325925425324724323723522622521721020219518818217617016616
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