GB/T1591钢板的化学成分
| 牌号 | 碳 | 硅 | 锰 | 磷 | 硫 | 铌 | 钒 | 钛 | 铬 | 铬 | 铜 | 氮 | 钼 |
Q345B | ≤0.2 | ≤0.5 | ≤1.7 | 0.035 | 0.035 | 0.07 | 0.15 | 0.2 | 0.3 | 0.5 | 0.3 | 0.012 | 0.1 |
Q345C | ≤0.2 | ≤0.5 | ≤1.7 | 0.03 | 0.03 | 0.07 | 0.15 | 0.2 | 0.3 | 0.5 | 0.3 | 0.012 | 0.1 |
Q345D | ≤0.18 | ≤0.5 | ≤1.7 | 0.03 | 0.025 | 0.07 | 0.15 | 0.2 | 0.3 | 0.5 | 0.3 | 0.012 | 0.1 |
Q390C | ≤0.2 | ≤0.5 | ≤1.7 | 0.03 | 0.03 | 0.07 | 0.20 | 0.20 | 0.3 | 0.5 | 0.3 | 0.015 | 0.10 |
Q390D | ≤0.2 | ≤0.5 | ≤1.7 | 0.03 | 0.025 | 0.07 | 0.20 | 0.20 | 0.3 | 0.5 | 0.3 | 0.015 | 0.10 |
GB/T1591钢板的力学性能表
| 牌号 | 屈服强度 | ||||||||
≤16 | 16-40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-200 | 200-250 | 250-400 | |
Q345B | ≥345 | ≥335 | ≥325 | ≥315 | ≥305 | ≥285 | ≥275 | ≥265 | - |
Q345C | ≥345 | ≥335 | ≥325 | ≥315 | ≥305 | ≥285 | ≥275 | ≥265 | - |
Q345D | ≥345 | ≥335 | ≥325 | ≥315 | ≥305 | ≥285 | ≥275 | ≥265 | ≥265 |
Q390C | ≥390 | ≥370 | ≥350 | ≥330 | ≥330 | ≥310 | - | - | - |
Q390D | ≥390 | ≥370 | ≥350 | ≥330 | ≥330 | ≥310 | - | - | - |
牌号 | 抗拉强度 | ||||||
≤40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-250 | 250-400 | |
Q345B | 470-630 | 470-630 | 470-630 | 470-630 | 450-600 | 450-600 | - |
Q345C | 470-630 | 470-630 | 470-630 | 470-630 | 450-600 | 450-600 | - |
Q345D | 470-630 | 470-630 | 470-630 | 470-630 | 450-600 | 450-600 | 450-600 |
Q390C | 490-650 | 490-650 | 490-650 | 490-650 | 470-620 | - | - |
Q390D | 490-650 | 490-650 | 490-650 | 490-650 | 470-620 | - | - |
GB/T1591 钢板应用:
GB/T1591 钢板用于桥梁、公路建设和其他工程建设的建设。
