C | Si | Mn | S | P | AIs | Nb | V | Ti |
≤0.12 | 0.15-0.55 | 1.00-1.65 | ≤0.005 | ≤0.020 | ≥0.015 | ≤0.030 | ≤0.060 | ≤0.025 |
牌号 | 屈服强度 Mpa, ≥ | 抗拉强度 | 延伸率 %,≥ | V型横向冲击功 ≥ | ||||
≤25mm | >25-40mm | >40-63mm | >63-80mm | 温度℃ | 纵向 | |||
S355G7+N/M | 355MPa | 345MPa | 335Mpa | 325Mpa | 470-630Mpa | 22 | -40J | 50J |