黑色金属硬度及强度换算值(GB／T1172-1999)

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1、三、黑色金属硬度及强度换算值（GB／T1172－1999）2006-10-1414:00:00附表3黑色金属硬度及强度换算值硬   度洛   氏表面洛氏维 氏布氏(F／D²=30)HRCHRAHR15NHR30NHR45NHVHBSHBW20.020.521．O21.522．O22.523．O23.524．O24.525．O25.526.026.527．O27.528．O28.529.029.530．O30.531.031.532.032.533．O33.534．O34.560.260.460.761．O61.261.561.762．O62.262.562.863．O63.363.56

2、3.864．O64.364.664.865.165.365.665.866.166.466.666.967.167.467.768.869．O69.369.569.870．O70.370.670.871.171.471.671.972.272.472.773.073.373.573.874.174.474.774.975.275.575.876.176.476.740.741.241.742.242.643.143.644．O44.545.045.545.946.446.947.347.848.348.749.249.750.250.651.151.652．O52.553．O53.45

3、3.954.419.219.820.421．O21.522.122.723.323.924.525.125.726.326.927.528.128.729.329.930.531.131.732.332.933.534.134.735.335.936.522622823023323523824l24424725025325625926226626927327628028428829229630030430831331732l32622522722923223423724024224524825l25425726026326626927327628028328729l2942983023

4、06310314318 (适用于含碳量由低到高的钢种)抗拉强度ób／MPa碳钢铬钢铬钒钢铬镍钢铬钼钢铬镍钼钢铬锰硅钢超高强度钢不锈钢774784742751736744782787747753850859781788 7407497938038138238338438548648758868979089199309429549659779891002101410271039105210651078109211057607697797887988088188288388488598708808919029149259379489609729849961009102210341048106

5、17537617707797887978078168268378478588698808929039159289409539669809931007102210361051106779279780380981582282983684385185986787688589490491492493594695796998199410071020103410487607677747817897978058138228318408508608708808919029139249369489619749871001101510291043869879890901912923935947959972

6、9859991012102710411056107179480180981682483284084885686587488389390291292293394395496597798910011013102610391052106675876777778679680681682683784785886887989090l91392493694795997198399610081021103410471060硬   度洛   氏表面洛氏维 氏布氏(F／D2=30)HRCHRAHRl5NHR30NHR45NHVHBSHBW35.035.536.036.537．O37.538．O38.539

7、.039.540.040.541．O67.968.268.468.769.069.269.569.770．O70.370.570.871.177.077.277.577.878.178.478.779.079.379.679.980.280.554．855.355.856.256.757.257.658.158.659．O59.560．O60.437．O37.638.238.839.440．O40.641.241.842.443．O43.644