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S355G6+M steel plate is European standard high-strength welded structural steel for fixed offshore structures, "S" means structural steel, "355" means the minimum yield strength of the steel plate, G6 means the relevant number of steel grade characteristics, M is hot rolled or TMCP delivery status.
S355G6+M steel plate delivery status: hot rolled, TMCP.
S355G6+M steel plate executive standard: EN 10225-2009.
Smelting analysis of chemical composition of S355G6+M steel plate:
| C | Si | Mn | P | S | Ni | Mo | Nb | V | Ti | Alt | N | Ceq Max |
| ≤0.14 | ≤0.5 | ≤1.6 | ≤0.03 | ≤0.025 | ≤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 S355G6+M steel plate:
| Grade | Mechanical properties | ||
| S355G6+M plate(≤16) | ReH(MPa) | ≥355 | ReH/Rm≤0.93 |
| Rm(MPa) | 470-610 | ||
| A(%) | ≥22 | Horizontal | |
| Impact temperature | -40 | ||
| Akv(J) | ≥50 | ||
| Delivery Status | TMCP | ||
| S355G6+M plate(>16-40) | ReH(MPa) | ≥345 | ReH/Rm≤0.9 |
| Rm(MPa) | 470-610 | ||
| A(%) | ≥22 | Horizontal | |
| Impact temperature | -40 | ||
| Akv(J) | ≥50 | ||
| Delivery Status | TMCP | ||
S355G6+M steel plate has good mechanical properties, welding properties and process properties, and is suitable for the manufacture of offshore and offshore oil production platforms, wharf equipment and other structural parts.
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