牌号 | 化学成分(质量分数)/% | ||||||||||||||
C | Si | Mn | P | S | Cr | Ni | Mo | Al | Cu | V | Ti | Sn | As | N | |
22MnMoNi55 | 0.15~0.25 | 0.10~0.35 | 1.15~1.55 | ≤0.015 | ≤0.012 | ≤0.2 | 0.45~0.85 | 0.40~0.55 | 0.01~0.05 | ≤0.15 | ≤0.02 | ≤0.03 | ≤0.011 | ≤0.025 | ≤0.013 |
20MnMoR | 0.17~0.23 | 0.17~0.37 | 1.10~1.40 | ≤0.025 | ≤0.010 | ≤0.300 | ≤0.300 | 0.20~0.35 | ≤0.25 | ≤0.25 | ≤0.02 | ≤0.03 | ≤0.011 | ≤0.025 | ≤0.013 |
钢种 | 交货状态 | 室温拉伸 | 300℃拉伸 | AKV | 180° | ||
冷弯 | |||||||
Re(MPa) | Rm(MPa) | A(%) | Rp0.2(MPa) | (常温,J) | d=3.5a | ||
22MnMoNi55 | N+T | ≥450 | 570~740 | ≥18 | ≥390 | 平均≥40 | 完好 |
Q+T | 590~760 | 单值≥34 | |||||
20MnMoR | N+T | ≥370 | 530~680 | ≥18 | -- | ≥34 | -- |
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