Offshore Steel – S355G8+M / S355G8 +N
1.Offshore Steel
EN10225:S355
S355G7+M/S355G7+N | S355G8+M/S355G8+N | S355G9+M/S355G9+N
S355G10+M/S355G10+N
2.Grade S355G8 offshore quality steel can supplied in normalized and thermo-mechanically rolled condition. S355G8 comes under the standard EN10225:2001 which the technical delivery condition for wieldable steels for fixed offshore structures.
3.S355G8 can either be normalized (N) or thermo-mechanically rolled (M) and is a structural grade offering good tensile and yield strength. The steel is used throughout the offshore oil and gas industry in the construction of structures and platforms.
Please refer to the technical information below for S355G8+M and S355G8+N.
4.Chemical Composition (for S355G8+M & S355G8+N)
| C | Si | Mn | P | S | Cr | Mo | Ni | Al | Cu | N | Nb | Ti | V | Nb+V |
| 0.14 | 0.15/0.55 | 1.0/1.65 | 0.02 | 0.007 | 0.25 | 0.08 | 0.5 | 0.015/0.055 | 0.3 | 0.01 | 0.04 | 0.025 | 0.06 | 0.06 |
5.Mechanical Properties
| Grade | Mechanical Properties (min) unless stated | ||||||||
| Tensile Strength | Yield Strength | Elongation A |
|||||||
| Thickness (mm) | Thickness t – mm | ||||||||
| ≤100 | >100 | ≤16 | 16<t≤25 | 25<t≤40 | 40<t≤63 | 63<t≤100 | 100<t≤150 | % | |
| S355G8+M | 470/630 | – | 355 | 355 | 345 | 335 | 325 | – | 22 |
| S355G8+N | 470/630 | 460/620 | 355 | 355 | 345 | 335 | 325 | 320 | 22 |
6.For more information about the high quality offshore steel grades on offer from us , including S355G8, please contact us.