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1、低碳鋼硬度與強(qiáng)度換算值（GB/T1172-1999）抗拉強(qiáng)度σb（N．mm2）洛氏維氏布氏（HRB）（HV）（HBS）F/D2=10F/D2=3060.010237560.510237761.010337961.510338162.010438262.510438463.010538663.510538864.010639064.510639365.010739565.510739766.010839966.510840267.010940467.511040768.011040968.511141269.011241

2、569.511241870.011342170.511442471.011542771.511543072.011643372.511743773.011844073.511944474.012044774.512145175.012245575.512345976.012446376.512546777.012647177.512747578.012848078.512948479.013048979.513249380.013349880.513450381.013650881.513751382.01385188

3、2.514052383.015252983.515453484.015554084.515654685.015855185.515955786.016156386.516357087.016457687.516658288.016858988.517059689.017260389.517460990.017661790.517862491.018063191.518263992.018464692.518765493.018966293.519267094.019567894.519768695.020069595.

4、520370396.020671296.520972197.021273097.521573998.021874998.522275899.022676899.5229778100.0232788碳鋼及合金鋼硬度換算（GB/T1172-1999）洛氏表面洛氏維氏布氏（F/D2=30）HRCHRAHR15NHR30NHR45NHVHBSHBW20.060.268.840.719.222622520.560.469.041.219.822822721.060.769.341.720.423022921.561.069.54

5、2.221.023323222.061.269.842.621.523523422.561.570.043.122.123823723.061.770.343.622.724124023.562.070.644.023.324424224.062.270.844.523.924724524.562.571.145.024.525024825.062.871.445.525.125325125.063.071.645.925.725625426.063.371.946.426.325925726.563.572.246.

6、926.926226027.063.872.447.327.526626327.564.072.747.828.126926628.064.373.048.328.727326928.564.673.348.729.327627329.064.873.549.229.928027629.565.173.849.730.528428030.065.374.150.231.128828330.565.674.450.631.729228731.065.874.751.132.329629131.566.174.951.63

7、2.930029432.066.475.252.033.530429832.566.675.552.534.130830233.066.975.853.034.731330633.567.176.153.435.331731034.067.476.453.935.932131434.567.776.754.436.532631835.067.977.054.837.033132335.568.277.255.337.633532736.068.477.555.838.234033236.568.777.856.238.

8、834533637.069.078.156.739.435034137.569.278.457.240.035534538.069.578.757.640.636035038.569.779.058.141.236535539.070.079.358.641.837136039.570.379.659.042.437636540.