Low temperature impacting test shall be done for structural steel plate S355G6+M under minus 20 centigrade.When rolling of oil and offshore platform steel plate S355G6+M,TMCP heat treatment shall be done for these structural steel plates.
Steel Standard:EN 10225
Rolling Type:Oil and offshore platform steel plate
Thickness:6mm-300mm
Width:1500mm-4200mm
Length:3000mm-18000mm
Heat Treatment:Thermo-Mechanical Control Process (TMCP)
Technical Requirements & Additional Services for S355G6+M steel plate:
Z TEST (Z15,Z25,Z35)
Low temperature impacting test
Ultrasonic test under EN 10160,ASTM A435,A577,A578
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Shot blasting and Painting,Cutting and welding as per end user's demands
Mechnical property for S355G6+M steel plate:
| Thickness (mm) | |||||||
| S355G6+M | ≤ 16 | > 16 ≤ 25 | > 25 ≤ 40 | > 40 ≤ 63 | > 63 ≤ 100 | > 100 | |
| Yield strength (≥Mpa) | 355 | 345 | 345 | 345 | 345 | 345 | |
| ≤ 100 | > 100 | ||||||
| Tensile strength (Mpa) | 470-610 | 470-610 | |||||
Chemical composition for S355G6+M steel plate (Ladle Analysis Max%)
| Main chemical elements composition of S355G6+M steel plate | ||||||
| C | Si | Mn | P | S | Cr | Mo |
| 0.14 | 0.50 | 1.60 | 0.030 | 0.025 | - | 0.20 |
| Ni | Alt min. | Cu | N | Nb | Ti | V |
| 0.30 | 0.020 | - | 0.015 | 0.050 | 0.050 | 0.10 |
