C |
Mn |
Si |
Cr |
W |
Fe |
Co |
2.4~3.0 |
≤1.0 |
≤2.0 |
27.0~33.0 |
11.0~14.0 |
≤2.0 |
余量 |
常溫硬度HRC |
高溫硬度一例HV |
|||
500℃ |
600℃ |
700℃ |
800℃ |
|
≥52 |
623 |
530 |
485 |
320 |