A压痕直径与布氏硬度及相应洛氏硬度对照表

1、附录A压痕直径与布氏硬度及相应洛氏硬度对照表dio2d54d2.5HBHRd102d54d 2.5HBhr30D210D22.5D2HRbHRcHR A30D210D22.5D2HRbHRcHR A2.3071267853.8025584.921.226642.3568265843.8524882.620.725632.4063563833.9024180.420.110024632.4562761823.9523578.319.69923622.5060159814.0022976.319.19822622.5557858804.0522374.318.69721612.6055556794

2、.1021772.418.19720612.6553454784.1522170.617.6962.7051452774.2020768.817.2952.7549551764.2520167.116.8942.8047749764.3019765.516.4932.8546148754.3519263.916.0922.9044447744.4018762.415.6912.9542945734.4518360.915.2893.0041534.644734.5017959.514.9883.0540133.443724.5517458.114.5873.1038812932.341714.

3、6017056.814.2863.1537512531.340714.6516755.513.9853.2036312130.339704.7016354.313.6843.2535211729.338694.7515953.013.3833.3034111428.437694.8015651.913.0823.3533111027.636684.8515250.712.7813.4032110726.735684.9014949.612.4803.4531110425.934674.9514648.612.2783.5030210125.233675.0014347.511.9773.552

4、9397.724.531665.0514046.511.6763.6028595.023.730665.1013745.511.4753.6527792.323.129955.1513444.611.2743.7026989.722.428655.2013143.710.9723.7526287.221.827645.2512842.810.7714（续表）dio2d54d2.5HBHR230D2210D222.5D2HRbHRcHR a5.3012641.910.5695.3512341.010.3695.4012140.213.1675.4511839.49.80665.5011638.6

5、9.6665d102d54d 2.5HBhr230D2210D222.5D2HRbHRcHR a5.5511437.99.46645.6011137.19.27625.6510936.49.10615.7010735.78.93595.7510535.08.7658附录三 黑色金属硬度和强度换算表(GB1172- 74)硬度抗拉强度洛氏表面洛氏维氏布氏HRCHRAHR 15NHR 30NHR 45NHVHB2(F =30 D )(MPa)70.086.6103769.586.3101769.086.199768.585.897868.085.595767.585.294167.085.0923

6、66.584.790666.084.488965.584.187265.083.992.281.371.785664.583.692.181.071.284064.083.391.980.670.682563.583.191.880.270.181063.082.891.779.869.579562.582.591.579.469.078062.082.291.479.068.476661.582.091.278.667.975261.081.791.078.167.373960.581.490.877.766.872660.081.290.677.366.2713260759.580.990

7、.476.965.6700255159.080.690.276.565.1688249658.580.390.076.164.5676244358.080.189.875.663.9664239157.579.889.675.263.4653234157.079.589.474.862.8642229356.579.389.174.462.2631224656.079.088.973.961.7620220155.578.788.673.561.1609215755.078.588.473.160.5599211554.578.288.172.659.9589207454.077.987.97

8、2.259.4579203453.577.787.671.858.8570199553.077.487.471.358.2561195752.577.187.170.957.6551192152.076.986.870.457.1543188551.576.686.670.056.5534185151.076.386.369.555.9525501181750.576.186.069.155.3517494178550.075.885.768.654.7509488175349.575.585.568.254.2501481172249.075.385.267.753.649347416924

9、8.575.084.967.353.0485468166348.074.084.666.852.4478461163547.574.584.366.451.8470455160847.074.284.065.951.2463449158146.573.983.765.550.7456442155546.073.783.565.050.1449436152945.573.483.264.649.54434301504(续)硬度抗拉强度洛氏表面洛氏维氏布氏(MPa)HRCHRAHR 15NHR 30NHR 45NHVHB(F =30 D2)45.073.282.964.148.9436424148

10、044.572.982.663.648.3429418145744.072.682.363.247.4423413143443.572.482.062.747.1417407141143.072.181.762.346.5411401138942.571.881.461.845.9405396136842.071.681.161.345.4399391134741.571.380.860.944.8393385132741.071.080.560.444.2388380130740.570.880.2.60.043.6382375128740.070.579.959.543.037737012

11、6839.570.379.659.042.4372365125039.070.079.358.641.8367360123238.579.058.141.2362355121438.078.957.640.6357350119737.578.457.240.0352345118037.078.156.739.4347341116336.577.856.238.8342336114736.077.555.838.2338332113135.577.255.337.6333327111535.077.054.837.0329323110034.576.754.436.5324318108534.0

12、76.453.935.9320314107033.576.153.435.3316310105633.075.853.034.7312306104232.575.552.534.1308302102832.075.252.033.5304298101531.574.951.632.9300294100131.074.751.132.329629198930.574.450.631.729228797630.074.150.231.128928396429.573.849.730.528528095129.073.549.229.928127694028.573.348.729.32782739

13、2828.073.048.328.727426991727.572.247.828.127126690627.072.447.327.526826389526.572.246.926.926426088426.071.946.426.326125787425.571.645.925.725825486425.071.445.525.125525185424.571.145.024.525224884424.070.844.523.924924583523.570.644.023.324624282523.070.343.622.724324081622.570.043.122.12402378

14、0822.069.842.621.523723479921.569.542.221.023423279121.069.341.720.423122978220.569.041.219.822922777420.068.840.719.222622576719.568.540.318.622322275919.068.339.818.022122075218.568.039.317.421821874418.067.838.916.821621673717.567.638.416.221421472717.067.337.915.6211211724硬度抗拉强度洛氏表面洛氏维氏布氏(MPa)HR

15、BHR 15NHR 30NHR 45NHVHB(F =30 D2)100.091.581.771.723380399.591.381.471.223079399.091.281.070.722778398.591.180.770.222577398.090.980.469.622276397.590.880.169.121975497.090.679.868.621674496.590.579.468.121473596.090.479.167.621172695.590.278.867.120871795.090.178.566.520670894.589.978.266.020370094

16、.089.877.865.520169193.589.777.565.019968893.089.577.264.519667592.589.476.964.019466792.089.376.663.419165991.589.176.263.918965191.089.075.962.418764490.588.875.661.918563690.089.589.088.588.088.775.361.418362988.675.060.918062188.474.660.317861488.374.359.817660788.174.059.317460187.588.073.758.8

17、17259487.087.973.458.317058786.587.773.057.816858186.087.672.757.216657585.587.572.456.716556885.087.372.156.216356284.587.271.855.716155684.087.071.455.215955083.586.971.154.715754583.086.870.854.115653982.586.670.553.615414053482.086.570.253.115213852881.586.369.852.615113752381.086.269.552.114913

18、651880.586.169.251.614813451.380.085.968.951.014613350879.585.868.650.514513250379.085.768.250.014313049878.585.567.949.514212949478.085.467.649.014012848977.585.267.348.513912748577.085.167.047.913812648076.585.066.647.413612547676.084.866.346.913512447275.584.766.046.413412346875.084.565.745.91321

19、2246474.584.465.445.413112146074.084.365.144.813012045673.584.164.744.312911945273.084.064.443.8128118449硬度抗拉强度洛氏表面洛氏维氏布氏(MPa)HRBHR 15NHR 30NHR 45NHVHB(F =30 D2)72.583.964.143.312611744572.083.763.842.812511644271.583.663.542.312411543971.083.463.141.712311543570.583.362.841.212211443270.083.262.540

20、.712111342969.583.062.240.212011242669.082.961.939.711911242368.582.761.539.211811142068.082.661.238.611711041867.582.560.938.111611041567.082.360.637.611510941266.582.260.337.111510841066.082.159.936.611410840765.581.959.636.111310740565.081.859.335.511210740364.581.659.035.011110640064.081.558.734

21、.511010639863.581.458.334.011010539663.081.258.033.510910539462.581.157.732.910810439262.080.957.432.410810439061.580.857.131.910710338861.080.756.731.410610338660.580.556.430.91051023856080.456.130.4105102383 是近似强度值，不分钢种，用于换算精度要求不高时，但不适用于铸铁。 表中洛氏硬度HRC1719.5和HRC67.570区间，以及布氏硬度450501区间的换算，分别超出金属洛氏硬度 试验法和金属布氏硬度试验法所规定的范围，仅供参考使用。7