What is S355G8+M hydropower steel

1. The applicable standard of S355G8+M hydroelectric steel is BS EN10225. S355G8+M hydroelectric steel is a series of high-strength structural steel products with good comprehensive mechanical properties, welding properties and process properties. It is suitable for manufacturing structural parts such as offshore oil production platforms and terminal equipment.

2. S355G8+M plate is a kind of European standard steel plate, which belongs to weldable structural steel for fixed coastal structure. Its delivery state is thermomechanical rolling, and the impact is -40 degree impact test. The 8 after G represents the characteristics of the steel type. As for the related numbers, the +M at the back means thermomechanical rolling, which is just a method of naming steel numbers in the standard.

3. The chemical composition of S355G8+M hydroelectric steel:
C: ≤0.12, Si: 0.15-0.55, Mn: 1.00-1.65, S: ≤0.005, P: ≤0.020, AIs: ≥0.015, Nb: ≤0.030, V: ≤0.060, Ti: ≤0.025.

4. Mechanical properties of S355G8+M steel plate:

5. The same type of hydropower steel:
S355G8+N, S355G8+M, S460G2+QT, S355G10+N, S355G10+M