S355G10+M steel plate for offshore oil production platforms and terminal equipment

1. Implementation of technical standard for S355G10+M steel plate: EN10225-2009 standard.

2. S355G10+M steel plate heat treatment delivery status: thermomechanical rolling (TMCP).

3. S355G10+M marine structural steel:
S355G10+M steel is weldable structural steel for fixed coastal structures, the delivery state is thermomechanical rolling, -40℃ impact, 10 after G represents the relevant number of steel grade characteristics, M is thermomechanical rolling.

4. Smelting analysis of chemical composition of S355G10+M steel plate:

Grade C Mn P S Cr Mo Ni Cu N Nb Ti V Al Si
S355G10+M 0.12 1.65 0.015 0.005 0.2 0.08 0.7 0.3 0.01 0.03 0.025 0.06 0.015-0.055 0.15-0.55

Among them: Nb+V≤0.06; Nb+V+Ti≤0.08

5. Mechanical properties of S355G10+M steel plate:

Grade Tensile strength MPa Lower yield strength MPa corresponding to thickness (mm) Elongation A% Impact energy
Thk≤100mm ≤16 16-25 25-40 40-63 63-100 Temperature ℃ Energy J
S355G10+M 470-630 355 355 345 335 325 22 -40 50

6. Specification and application of S355G10+M steel plate:
S355G10+M steel plate specification range: steel plate width 1500-4020mm, thickness 8-100mm, length 3000-27000mm. S355G10+M is a series of high-strength structural steel products with good comprehensive mechanical properties, welding properties and process properties. It is suitable for the manufacture of structural parts such as offshore and offshore oil production platforms and terminal equipment.

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