C | Si | Mn | Cr | W | P | S |
0.55~0.65 | 0.50~0.80 | ≤0.40 | 1.00~1.30 | 2.00~2.70 | ≤0.030 | ≤0.030 |
臨界點(diǎn) | Ac1 | Ac3 | Ms |
溫度(近似值)/℃ | 775 | 810 | 280 |
項(xiàng) 目 | 加熱溫度/℃ | 始鍛溫度/℃ | 終鍛溫度/℃ | 冷卻方式 |
鋼 錠 鋼 坯 |
1170~1200 1150~1170 |
1150~1180 1100~140 |
≥850 ≥850 |
緩 冷 緩 冷 |