1.4.2碳钢硬度与强度换算值

表1-39碳钢硬度与强度换算值硬度抗拉强度σb(MPa)洛氏表面洛氏维氏布氏HRBHR15THR30THR45THVHBSF/D2=10F/D2=3060.060.561.061.562.080.480.580.780.880.956.156.456.757.157.430.430.931.431.932.4105105106107108102102103103104　37537737938138262.563.063.564.064.581.181.281.481.581.657. ......（本文共 2243 字 ）     [阅读本文] >>