EN10225 S355G3+N Steel

EN 10225 specifies requirements for weldable structural steels to be used in the fabrication of fixed offshore structures in the form of plates up to and including 150 mm thick. It also specifies sections up to 63 mm thick except for sections delivered in the as-rolled condition which are permitted up to 25 mm thick only.

Specification: EN10225

For plates the thickness limitations are:
S355G2+N, S355G5+M, - up to and including 20 mm
S355G3+N, S355G6+M - up to and including 40 mm
S355G7+N, S355G8+N, S355G9+N, S355G10+N - up to and including 150 mm
S355G7+M, S355G8+M, S355G9+M, S355G10+M - up to and including 100 mm
S420G1+QT, S420G1+M, S420G2+QT, S420G2+M - up to and including 100 mm
S460G1+QT, S460G1+M, S460G2+QT, S460G2+M - up to and including 100 mm

EN10225 S355G3+N Steel Chemical Composition   

Grade	Chemical Composition
S355G3+N	The Element Max (%)
	C	Si	Mn	P	S	Nb	V	Ti	Al	Cr	Ni	Mo	Cu	N
	0.18	0.50	0.90-1.65	0.030	0.025	0.060	0.12	0.030	0.020	0.30	0.50	0.10	0.35	0.015

EN10225 S355G3+N Steel Mechanical Property

Grade	Mechanical Property
S355G3+N	Yield Strength mm Min(Mpa)		Tensile Strength mm Min(Mpa)						Elongation Min,%
	≤ 100	＞100	≤16	＞ 16 ≤ 25	＞ 25 ≤ 40	＞ 40≤ 63	＞ 63 ≤ 100	＞ 100 ≤ 150	22
	470-630	-	355	345	345	-	-	-

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