40Cr钢化学成分和物理性能
40Cr钢的临界温度
温度(近似值)/℃ |
780
770 |
840
805 |
350
328 |
1
2 |
1 用钢成分(%):0.38C,0.30Si,0.66Mn,0.95Cr,0.18Ni,0.016P,0.028S;
2 用钢成分(%):0.42C,0.29Si,0.69Mn,0.87Cr,0.14Ni,
南京办毕业证0.010P,0.013S。
40Cr钢的弹性模量和切变模量
弹性模量E(20℃) |
/MPa |
200000~211700 |
切变模量G(20℃) |
80800 |
,