S355G8+M STEEL PLATE

Low alloy structural steel S355G8+M,S355G8+M steel plate,S355G8+M steel sheet is Under European steel standard En 10225,S355G8 has two different types,aush as S355G8+M and S355G8+N,the main difference is the heat treatment when rolling.Oil and offshore platform steel plate S355G8+M shall be done TMCP when rolling,and S355G8+N shall be done Normalized heat treatment.These two oil and offshore steel grade shall be done low temperature under mins 40 centigrade and the minimum energy value shall be above 50J.

Technical Requirements & Additional Services for S355G8+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 

►Mechnical property for S355G8+M steel plate:

Thickness (mm)
S355G8+M	≤ 16	> 16 ≤ 25	> 25 ≤ 40	> 40 ≤ 63	> 63 ≤ 100	> 100
Yield strength (≥Mpa)	355	355	345	335	325	325
	≤ 100						> 100
Tensile strength (Mpa)	470-630						470-630

►Chemical composition for S355G8+M steel plate (Ladle Analysis Max%)

Main chemical elements composition of S355G8+M steel plate
C	Si	Mn	P	S	Cr	Mo	Nb+V	Nb+V+Ti
0.14	0.15-0.55	1.00-1.65	0.020	0.007	0.25	0.08	0.06	0.08
Ni	Alt	Cu	N	Nb	Ti	V	Cr+Mo+Ni+Cu
0.50	0.015-0.055	0.30	0.010	0.040	0.025	0.060	0.90