Weldable structural steel plate for fixed offshore platform structure grade range; S355G2+N, S355G3+N, S355G5+M, S355G6+M, S355G7+N, S355G7+M, S355G8+N, S355G8+M, S355G9+N, S355G9+M, S355G10+N, S355G10+M, S420G1+M and S420G2+M. These range of steel plates are manufactured thermomechanically rolled (M) or normalized (N).
Optional available specifications and tests are;
Ultrasonic testing
Reduced carbon equivalent (CEV) or parameter crack measurement (PCM) value
Transversal impact test
Improved deformation properties perpendicular to the surface of the product as per EN 10164 (Z test)
Post-weld heat treatment test (PWHT)
Final chemical, mechanical properties, dimensions and tolerances are confirmed against the governing specification and purchase order.
| GRADE | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Al (%) | Cu (%) | Cr (%) | Ni (%) | Nb (%) | V (%) | Ti (%) | N (%) | Mo (% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S355G2+N | ≤0.20 | 0.90 - 1.65 | ≤0.035 | ≤0.030 | ≤0.50 | ≥0.020 | ≤0.35 | ≤0.30 | ≤0.50 | ≤0.060 | ≤0.12 | ≤0.030 | ≤0.015 | ≤0.10 |
| S355G3+N | ≤0.18 | 0.90 - 1.65 | ≤0.030 | ≤0.025 | ≤0.50 | ≥0.020 | ≤0.35 | ≤0.30 | ≤0.50 | ≤0.060 | ≤0.12 | ≤0.030 | ≤0.015 | ≤0.10 |
| S355G5+M | ≤0.14 | ≤1.60 | ≤0.035 | ≤0.030 | ≤0.50 | ≥0.020 | - | - | ≤0.30 | ≤0.050 | ≤0.10 | ≤0.050 | ≤0.015 | ≤0.20 |
| S355G6+M | ≤0.14 | ≤1.60 | ≤0.030 | ≤0.025 | ≤0.50 | ≥0.020 | - | - | ≤0.30 | ≤0.050 | ≤0.10 | ≤0.050 | ≤0.015 | ≤0.20 |
| S355G7+N | ≤0.14 | 1.00 - 1.65 | ≤0.020 | ≤0.010 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.25 | ≤0.50 | ≤0.040 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G7+M | ≤0.14 | 1.00 - 1.65 | ≤0.020 | ≤0.010 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.25 | ≤0.50 | ≤0.040 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G8+N | ≤0.14 | 1.00 - 1.65 | ≤0.020 | ≤0.007 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.25 | ≤0.50 | ≤0.040 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G8+M | ≤0.14 | 1.00 - 1.65 | ≤0.020 | ≤0.007 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.25 | ≤0.50 | ≤0.040 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G9+N | ≤0.12 | ≤1.65 | ≤0.020 | ≤0.010 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.20 | ≤0.70 | ≤0.030 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G9+M | ≤0.12 | ≤1.65 | ≤0.020 | ≤0.010 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.20 | ≤0.70 | ≤0.030 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G10+N | ≤0.12 | ≤1.65 | ≤0.015 | ≤0.005 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.20 | ≤0.70 | ≤0.030 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| S355G10+M | ≤0.12 | ≤1.65 | ≤0.015 | ≤0.005 | 0.15 - 0.55 | 0.015 - 0.055 | ≤0.30 | ≤0.20 | ≤0.70 | ≤0.030 | ≤0.06 | ≤0.025 | ≤0.010 | ≤0.08 |
| GRADE | Yield Strength | Tensile Strength (min) | Tensile Strength (max) | Elongation | KV -20°C (J) | KV -50°C (J) |
|---|---|---|---|---|---|---|
| S355G2+N | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G3+N | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G5+M | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 88 ksi [610 MPa] | ≥22% | ≥50 | |
| S355G6+M | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 88 ksi [610 MPa] | ≥22% | ≥50 | |
| S355G7+N | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G7+M | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G8+N | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G8+M | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G9+N | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G9+M | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G10+N | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 | |
| S355G10+M | ≥52 ksi [≥355 MPa] | 68 ksi [470 MPa] | 92 ksi [630 MPa] | ≥22% | ≥50 |
Material lists, drawings or heat requirements — our desk responds with a full RFQ within one business day.
