C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
0.35~0.45 |
0.80~1.10 |
0.80~1.10 |
≤0.030 |
≤0.030 |
1.30~1.50 |
0.40~0.60 |
0.20~0.40 |
臨界點(diǎn) |
Ac1 |
Ac3 |
Ar1 |
Ar3 |
Ms |
Mf |
Bs |
Bf |
溫度(近似值)/℃ |
792 |
855 |
660 |
770 |
330 |
165 |
420 |
350 |
項(xiàng) 目 |
加熱溫度/℃ |
開(kāi)鍛溫度/℃ |
終鍛溫度/℃ |
冷卻方式 |
鋼 錠 鋼 坯 |
1160~1180 1100~1150 |
1100~1150 1050~1100 |
≥850 ≥850 |
緩冷(砂或坑冷) 緩冷(砂或坑冷) |