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1. Introduction of S355G2+N steel plate
S355G2+N steel belongs to the European standard low-alloy high-strength steel. It is a welded structural steel for fixed offshore structures. "S" means structural steel, "355" means the lowest yield strength of the steel plate, G2 means the number related to the characteristics of the steel, and N is normalizing or normalizing rolling delivery status.
2. S355G2+N steel plate executive standard: EN 10225.
3. Delivery status of heat treatment of S355G2+N steel plate: normalizing rolling, normalizing.
4. Melting analysis of chemical composition of S355G2+N steel plate:
| Grade | Si | Mn | P | S | Ni | Cr | Mo |
| S355G2+N | ≤0.5 | 0.9~1.65 | ≤0.035 | ≤0.03 | ≤0.5 | ≤0.3 | ≤0.1 |
| Cu | Nb | V | Ti | Alt | N | CeqMax | C |
| ≤0.35 | ≤0.06 | ≤0.12 | ≤0.03 | ≥0.02 | ≤0.015 | ≤0.43 | ≤0.2 |
5. S355G2+N steel plate is a series of high-strength structural steel products with good comprehensive mechanical properties, welding properties and process properties. S355G2+N steel is suitable for manufacturing structural parts such as offshore oil production platforms and terminal equipment.
