化學成分 | |||||||||
C | Si | Mn | P | S | Ni | ||||
≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 10.00-14.50 | ||||
Cr | Mo | Cu | N | 其他 | |||||
17.00-19.00 | 1.20-2.70 | 1.00-2.50 | --- | --- | |||||
熱處理℃ | 拉伸試驗 | 硬度試驗 | ||||||
σ0.2 MPa | σb MPa | δ5 % | Ψ % | Ak J | HB | HRB | HV | |
不小於 | ≥ | 不大於 | ||||||
1010-1150℃ | 205 | 520 | 40 | 60 | --- | 187 | 90 | 200 |