力学性能 |
化学成份 | |||||||||
| 屈服强度 | 抗拉强度 | 伸长率 | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | 不大于 | 不大于 | 不大于 | |||
| Q215A Q215B |
215 | 22 | 335-410 | 34-42 | 31 | 0.09-0.15 | 0.03 | 0.25-0.55 | 0.050 0.045 |
0.045 |
| Q235A Q235B Q235C Q235D |
235 | 24 | 375-460 | 38-47 | 26 | 0.14-0.22 0.12-0.20 ≤0.18 ≤0.17 |
0.30 | 0.30-0.65 0.30-0.70 0.35-0.80 0.35-0.80 |
0.50 0.45 0.40 0.035 |
0.045 0.045 0.040 0.035 |
| 16Mn(Q345B) | 345 | 35 | 510-600 | 51.60 | 22 | 0.12-0.20 | 0.20-0.55 | 1.2-1.6 | 0.045 | 0.045 |
| X42 | 289 | 29.5 | 413 | 42.1 | 0.28 | - | 1.25 | 0.030 | 0.030 | |
| X52 | 358 | 36.5 | 455 | 46.4 | 0.30 | - | 1.35 | 0.030 | 0.030 | |
| X56 | 386 | 39.4 | 489 | 49.9 | 0.26 | - | 1.35 | 0.030 | 0.030 | |
| X60 | 413 | 42.1 | 517 | 52.7 | 0.26 | - | 1.35 | 0.030 | 0.030 | |
| X65 | 448 | 45.7 | 530 | 54.0 | 0.26 | - | 1.40 | 0.030 | 0.030 | |
| X70 | 482 | 49.2 | 565 | 57.6 | 0.26 | - | 1.40 | 0.030 | 0.030 | |
| L245 | 245 | 415 | 21 | 0.26 | 1.15 | 0.030 | 0.030 | |||
| L290 | 290 | 415 | 21 | 0.28 | 1.25 | 0.030 | 0.030 | |||
| L360 | 360 | 460 | 19 | 0.3 | 1.25 | 0.030 | 0.030 | |||
