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S355G5+M steel plate is a weldable structural steel for fixed coastal structures, impacted at -20℃, "S" means structural steel, "355" means the minimum yield strength of the steel plate, G5 means the relevant number of steel properties, M is the thermal rolled, TMCP delivery status.
S355G5+M steel plate implementation technical standard: EN 10225-2009.
Heat treatment process of S355G5+M steel plate: hot rolling, TMCP.
Smelting analysis of chemical composition of S355G5+M steel plate:
| C | Si | Mn | P | S | Ni | Mo | Nb | V | Ti | Alt | N | Ceq Max |
| ≤0.14 | ≤0.5 | ≤1.6 | ≤0.035 | ≤0.03 | ≤0.3 | ≤0.2 | ≤0.05 | ≤0.1 | ≤0.05 | ≥0.02 | ≤0.015 | ≤0.43 |
Ingredient Notes: Alt/N≥2. Ceq = C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15
Mechanical properties of S355G5+M steel plate:
| Delivery Status | Thickness (mm) | Mechanical properties | ||
| Hot rolled | ≤16 | ReH(MPa) | ≥355 | ReH/Rm≤0.93 |
| Rm(MPa) | 470-610 | |||
| A(%) | ≥22 | Horizontal | ||
| Impact temperature | -20 | |||
| Akv(J) | ≥50 | |||
| Remark | Delivery Status: TMCP | |||
| >16-25 | ReH(MPa) | ≥345 | ReH/Rm≤0.9 | |
| Rm(MPa) | 470-610 | |||
| A(%) | ≥22 | Horizontal | ||
| Impact temperature | -20 | |||
| Akv(J) | ≥50 | |||
| Remark | Delivery Status: TMCP | |||
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