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7Cr7Mo3V2Si高强韧性冷作模具钢
7Cr7Mo3V2Si是一种高强韧性冷作模具钢,与C型冷作模具钢和W6Mo5Cr4V2高速钢比较,具有更高的强度和韧性,而且有较好的耐磨性。7Cr7Mo3V2Si钢适宜制造承受高负荷的冷挤、冷镦、冷冲模具等。
7Cr7Mo3V2Si钢的化学成分
| C | Cr | Mo | V | Si | Mn | P | S |
| 0.70~0.80 | 6.50~7.50 | 2.00~3.0 | 1.70~2.20 | 0.70~1.20 | ≤0.50 | ≤0.030 | ≤0.030 |
7Cr7Mo3V2Si钢的热加工
7Cr7Mo3V2Si钢的热加工条件
| 加热温度/℃ | 始锻温度/℃ | 终锻温度/℃ | 冷 却 |
| 1120~1130 | 1100 | ≥850 | 缓冷(坑冷或砂冷) |
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