April 10, 2024
S420G1 is an offshore structural grade steel. The material can be delivered as quenched (Q) or thermo-mechanically rolled (M). GNEE steel supply the material in accordance with EN10225:2001.
S420G1 has good yield and tensile strength and is used in the construction of offshore platforms and oil rigs.
Please refer to the technical information for S420G1+QT below.
Mechnical property for S420G1+QT steel plate:
| Thickness (mm) | |||||
| S420G1+QT steel plate | ≤ 16 | >16 ≤ 40 | >40 ≤ 63 | >63 ≤ 80 | >80 |
| Yield strength (≥Mpa) | 420 | 400 | 390 | 380 | 380 |
| ≤ 40 | >40 | ||||
| Tensile strength (Mpa) | 500-660 | 480-640 | |||
Chemical composition for S420G1+QT steel plate (Ladle Analysis Max%)
| Main chemical elements composition of S420G1+QT steel plate | ||||||||
| C | Si | Mn | P | S | Cr | Mo | Nb+V | Nb+V+Ti |
| 0.14 | 0.15-0.55 | 1.65 | 0.020 | 0.010 | 0.25 | 0.25 | 0.09 | 0.11 |
| Ni | Alt | Cu | N | Nb | Ti | V | Cr+Mo+Ni+Cu | |
| 0.70 | 0.015-0.055 | 0.30 | 0.010 | 0.040 | 0.025 | 0.080 | 0.90 | |
