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Offshore Steel – S355G9+M / S355G9 +N

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Home Page Specification Grades

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Offshore Steel Home Page EN10225:S355 S355G7+M/S355G7+N | S355G8+M/S355G8+N | S355G9+M/S355G9+N S355G10+M/S355G10+N

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S355G9 – an offshore quality structural steel used in the offshore industry.

Supplied under the EN10225:2001 standard, the material shows good tensile and yield strength and has good weldability. The steel is used throughout the offshore industry in the building of offshore steel structures & platforms which are subjected to some of the harshest weather conditions.

Please refer to the chemical composition and mechanical properties below for S355G9+M and S355G9+N.

Chemical Composition (for S355G9+M & S355G9+N)

C	Si	Mn	P	S	Cr	Mo	Ni	Al	Cu	N	Nb	Ti	V	Nb+V
0.12	0.15/0.55	1.65	0.02	0.01	0.20	0.08	0.7	0.015/0.055	0.3	0.01	0.03	0.025	0.06	0.06

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	%
S355G9+M	470/630	–	355	355	345	335	325	–	22
S355G9+N	470/630	460/620	355	355	345	335	325	320	22

For more information about the high quality offshore steel grades on offer from Masteel UK Limited, including S355G9, please  CLICK HERE  to contact us.

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