牌号 | 厚度 | 化学成分 | ||||||||||
C | Si | Mn | P | S | Cr | Ni | Mo | Cu | V | B | ||
610CF | ≤80 | ≤0.07 | ≤0.40 | 1.00~1.600 | ≤0.015 | ≤0.005 | ≤0.50 | 0.15~1.50 | ≤0.50 | ≤0.30 | ≤0.050 | ≤0.003 |
>80~120 | ≤0.09 | |||||||||||
>120~150 | ≤0.10 | ≤0.40 | 1.00~1.60 | ≤0.015 | ≤0.005 | ≤0.60 | 0.50~1.60 | ≤0.50 | ≤0.30 | ≤0.050 | ≤0.003 |
牌号 | 板厚(mm) | 力学性能 | |||||
Rpo2 MPa | Rm MPa | A²% | 冲击功³ | 冷弯 a=180°;b=2a; D=3a | |||
试验温度°C | KV2J | ||||||
610CF | ≤80 | ≥490 | 610~750 | ≥17 | -20 | ≥100 | 外表无裂纹 |
>80~120 | ≥470 | 590~730 | ≥17 | -20 | ≥100 | ||
>120~150 | ≥450 | 570~730 | ≥17 | -20 | ≥80 |
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