黑色金属洛氏硬度(HRC)与其他硬度、强度换算（CB/T 1172—1999）硬度洛氏HRC抗拉强度σb/N.mm-2布氏（F/D2=30）维氏碳钢HVHBSHBW表面洛氏铬钢HRAHR15NHR30NHR45N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57.558.058.559.059.560.060.561.061.562.062.563.063.5.0.565.065.566.066.567.067.568.079.880.180.380.680.981.281.481.782.082.282.582.883.183.883.683.984.184.484.785.085.285.5.6.0.090.290.490.690.1.091.290.491.591.791.1.992.192.275.275.676.176.576.975.277.778.178.679.079.479.880.280.681.081.363.433.9.565.165.666.266.867.367.968.469.069.570.170.671.271.75655666676687698710721733745757770782795809822836850865879490962262863463937650233423902448250925722639
