Materials | Chemical compositions (mass%) | Mechanical properties | ||||||
C | Si | Mn | P | S | Yield stress (MPa) | Tensile strength (MPa) | Elongation (%) | |
Box column: STKR400 | 0.15 | 0.01 | 0.39 | 0.018 | 0.004 | 401 | 474 | 38 |
Patch plate: SPHC | 0.12 | 0.01 | 0.60 | 0.015 | 0.005 | 276 | 341 | 18 |
Top/Bottom plate: SM400A* | 0.14 | 0.17 | 0.62 | 0.025 | 0.006 | 353 | 471 | 28 |
Weld metal: YGW12* | 0.09 | 0.44 | 0.96 | 0.012 | 0.012 | 460 | 540 | 31 |