牌号 | 材料号 | C | Si | Mn | P | S | Cr | Mo | Ni | Cr+Mo+Ni |
C45 | 1.0503 | 0.42-0.50 | 0.50-0.80 | 0.50-0.80 | ≤0.045 | ≤0.045 | ≤0.40 | ≤0.10 | ≤0.40 | ≤0.63 |
牌号 | 厚度/mm | 屈服强度mpa | 抗拉强度mpa | 断后伸长率A% | 断面收缩率Z% |
C45 | ≤8 | ≥490 | 700-850 | ≥14 | ≥35 |
8-20 | ≥430 | 650-800 | ≥16 | ≥40 | |
20-60 | ≥370 | 630-780 | ≥17 | ≥45 |
牌号 | 厚度/mm | 屈服强度mpa | 抗拉强度mpa | 断后伸长率A% |
C45 | ≤8 | ≥340 | ≥620 | ≥14 |
8-20 | ≥305 | ≥580 | ≥16 | |
20-60 | ≥275 | ≥560 | ≥16 |
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