臨界點(diǎn) | Ac1 | Ac3 | Ms |
溫度(近似值)/℃ | 780 | 840 | 315 |
C | Si | Mn | Cr | W | P | S |
0.35~0.45 | 0.80~1.10 | ≤0.40 | 1.00~1.30 | 2.00~2.50 | ≤0.030 | ≤0.030 |
項(xiàng)目 | 加熱溫度/℃ | 開(kāi)鍛溫度/℃ | 終鍛溫度/℃ | 冷卻方式 |
鋼錠 鋼坯 |
1180~1220 1150~1180 |
1150~1180 1100~1140 |
≥850 ≥800 |
緩冷 緩冷 |