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Home > products> S355G7+M S355G7+N EN10225 offshore steel plate

S355G7+M S355G7+N EN10225 offshore steel plate

Steel Standard:EN 10225

Rolling Type:Oil and offshore platform steel plate

Thickness:6mm-300mm

Width:1500mm-4200mm

Length:3000mm-18000mm

Heat Treatment:Normalized

En 10225 S355g7+M Steel Plate suppliers S355G7+N offshore Steel plate en10225 Shipbuilding steel 100% Quality Tested EN 10225 S355G7+M Steel Plates S355G7+M Platform steel

Introduction
Parameters
Service

EN10225 S355G7+M and S355G7+N

S355g7+M and S355g7+N both are structural steel plate grades and mainly used in offshore industry. S355g7+M means thermo-mechanically rolled and S355g7+N means normalised steel plate. These both S355g7+M / N structural steel plate offers good tensile and yield strength and supplied as per EN10225:2001 standard. These S355g7+M and S355g7+N Plate are used to build offshore platforms in offshore industries.

The material can be supplies as S355G7+N (N=Normalized) or SG355G7+M (M=Thermo-Mechanically Rolled).

Nearest Equivalent Grade : API 2H Grade50; API 2W Grade50; API 2W Grade50T, BS7191:1989 355EM; Werkstoff 1.8808+N;1.8808+M

EN 10225 S355g7+M / S355g7+N Specification

Standard	EN 10225 S355g7+M / S355g7+N
S355g7+M Plate Rolling Type	Oil and offshore platform steel plate
Thickness of S355g7+M Plate	6mm-300mm
S355g7+M Plate Width	1500mm-4200mm
Length	3000mm-18000mm
Heat Treatment	Normalized / Drawing-back
Technique	Hot Rolled
Grade	S355g7+M / S355g7+N
Number	1.8808
Classification	Alloy quality steel
Density	7.85 g/cm ³
Standard	EN 10225: 2009 Weldable structural steels for fixed offshore structures. Technical delivery conditions

Specification Parameters

Basic Information

Chemical composition for S355G7+M Platform steel (Ladle Analysis Max%)

	C max.	Si	Mn	S max.	P max.	Cr max.	Mo max.	Nb max.	V max.	Ti max.	Ni max.	Cu max.	Al(tot)	N max.
S355G7+M S355G7+N	0.14	0.15/ 0.55	1.00/1.65	0.01	0.02	0.25	0.08	0.04	0.06	0.025	0.5	0.3	0.015/ 0.055	0.01
S355G8+M S355G8+N	0.14	0.15/ 0.55	1.00/1.65	0.007	0.02	0.25	0.08	0.04	0.06	0.025	0.5	0.3	0.015/ 0.55	0.01
S355G9+M S355G9+N	0.12	0.15/ 0.55	1.65max.	0.01	0.02	0.2	0.08a	0.03	0.06	0.025	0.7b	0.3	0.015/ 0.55	0.01
S355G10+N S355G10+M	0.12	0.15/ 0.55	1.65max.	0.005	0.015	0.2	0.08a	0.03	0.06	0.025	0.7b	0.3	0.015/ 0.55	0.01

a.For t > 75 mm maximum Mo of 0.20% shall apply for +M condition.
b.For t > 40 mm the minimum Ni content shall be 0.30%.

S355G7+M;S355G7+N Mechanical Properties

Grade	Mechanical Properties (min) unless sated						Tensile Strength Rm MPa
	Tensile Strength						Nominal Thickness (mm)
	Thickness (mm)								Elongation A
	< 100	>100	<16	>16 <25	>25 <40	>40 <63	>63 <100	>100 <150	%
S355G7+M	470/630	–	355	355	345	335	325	–	22
S355G7+N	470/630	460/620	355	355	345	335	325	320	22

Service Support

S355G7+M S355G7+N EN10225 offshore steel plate

Technical Requirements & Additional Services for S355G7+N /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

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S355G7+M S355G7+N EN10225 offshore steel plate

EN10225 S355G7+M and S355G7+N

EN 10225 S355g7+M / S355g7+N Specification

Chemical composition for S355G7+M Platform steel (Ladle Analysis Max%)

S355G7+M;S355G7+N Mechanical Properties

Technical Requirements & Additional Services for S355G7+N /M steel Plate: