钢的硬度换算表

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1、〔技术参数〕硬度换算表  ((SAEJ417)*1983年修订)钢的洛氏硬度C的近似换算值(1)(HRC)洛氏硬度C(HV)维氏硬度布氏硬度(HB)10mm球负载3000kgf洛氏硬度(3)洛氏表面硬度金刚石圆锥压头(Hs)抗拉强度(近似值)MPa(kgf/mm2)(2)洛氏硬度C(3)肖氏硬度标准球碳化钨球(HRA)A标度负载60kgf金刚石圆锥压头(HRB)B标度负载100kgf直径1.6mm(1/16in)球(HRA)D标度负载100kgf金刚石圆锥压头15−N标度负载15kgf30−N标度负载30kgf45−N标度

2、负载45kgf68940−−85.6−76.993.284.475.497−6867900−−85.0−76.192.983.674.295−6766865−−84.5−75.492.582.873.392−6665832−(739)83.9−74.592.281.972.091−6564800−(722)83.4−73.891.881.171.088−64            63772−(705)82.8−73.091.480.169.987−6362746−(688)82.3−72.291.179.368.885−

3、6261720−(670)81.8−71.590.778.467.783−6160697−(654)81.2−70.790.277.566.681−6059674−(634)80.7−69.989.876.665.580−59            58653−61580.1−69.289.375.764.378−5857633−59579.6−68.588.974.863.276−5756613−57779.0−67.788.373.962.075−5655595−56078.5−66.987.973.060.97420

4、75(212)5554577−54378.0−66.187.472.059.8722015(205)54            53560−52577.4−65.486.971.258.6711950(199)5352544(500)51276.8−64.686.470.257.4691880(192)5251528(487)49676.3−63.885.969.456.1681820(186)5150513(475)48175.9−63.185.568.555.0671760(179)5049498(464)46975.

5、2−62.185.067.653.8661695(173)49              4848445145574.7−61.484.566.752.5641635(167)484747144244374.1−60.883.965.851.4631580(161)474645843243273.6−60.083.564.850.3621530(156)464544642142173.1−59.283.064.049.0601480(151)454443440940972.5−58.582.563.147.8581435(

6、146)44              4342340040072.0−57.782.062.246.7571385(141)434241239039071.5−56.981.561.345.5561340(136)424140238138170.9−56.280.960.444.3551295(132)414039237137170.4−55.480.459.543.1541250(127)403938236236269.9−54.679.958.641.9521215(124)39              38372

7、35335369.4−53.879.457.740.8511180(120)383736334434468.9−53.178.856.839.6501160(118)373635433633668.4(109.0)52.378.355.938.4491115(114)363534532732767.9(108.5)51.577.755.037.2481080(110)353433631931967.4(108.0)50.877.254.236.1471055(108)34              333273113116

8、6.8(107.5)50.076.653.334.9461025(105)333231830130166.3(107.0)49.276.152.133.7441000(102)323131029429465.8(106.0)48.475.651.332.743980(100)31303022862866