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Mechanical properties of steel.
| Grade | t/mm | fy/Mpa | fu/Mpa | δ/% |
|---|---|---|---|---|
| Q235 | 5 | 277 | 437 | 33.7 |
| Q235 | 8 | 305 | 469 | 32.5 |
| Q460 | 5 | 474 | 558 | 28.8 |
| Q460 | 8 | 507 | 596 | 27.9 |
| Q690 | 5 | 740 | 820 | 16.5 |
| Q690 | 8 | 738 | 818 | 17.2 |
| HRB400 (stirrups) | 8 | 469 | 611 | 28.6 |
| HRB400 (longitudinal reinforcement) | 10 | 460 | 609 | 27.8 |
