Offshore Steel S420G1+Q

 Offshore Steel – S420G1+Q / S420G1+M

1.Offshore Steel Home Page


S420G1+Q / S420G1+M | S420G2+Q / S420G1+M

2.S420G1 offshore structural steel can be supplied as thermo-mechanically rolled or quenched and tempered condition. S420G1 is an offshore structural grade steel. The material can be delivered as quenched (Q) or thermo-mechanically rolled (M). We supply the material in accordance with EN10225:2001.

3.S420G1 has good yield and tensile strength and is used in the construction of offshore platforms and oil rigs. We Limited specialise in the supply of offshore steel products to the global oil and gas industry.

Please refer to the technical information for S420G1+M and S450G1+Q below…

4.Chemical Composition (for both S420G1+M and S420G1+Q)

C Si Mn P S Cr Mo Ni Al Cu N Nb Ti V Nb+V
0.14 0.15/0.55 1.65 0.02 0.01 0.25 0.25 0.7 0.015/0.055 0.3 0.01 0.04 0.025 0.08 0.09

5.Mechanical Properties

Grade Mechanical Properties (min) unless stated
Tensile Strength Yield Strength Elongation
Thickness t – (mm) Thickness t – mm
≤40 40<t≤100 ≤16 16<t≤40 40<t≤63 63<t≤80 80<t≤100 %
S420G1+M 500/660 480/640 420 400 390 380 380 19
S420G1+Q 500/660 480/640 420 400 390 380 380 19

6.For more information about the high quality offshore steel grades on offer from we Limited, including S420G1+Q or M, please contact us.