JIS G3114 atmospheric corrosion resisting steels for welded structure

JIS G3114 standard specifies fourteen steel grades (SMA400AW, SMA400BW, SMA400CW, SMA400AP, SMA400BP, SMA400CP, SMA490AW, SMA490BW, SMA490CW, SMA490AP, SMA490BP, SMA490CP, SMA570W, AMA570P) atmospheric corrosion resisting steels for welded structure . They are always supplied in hot rolled type. Our SMA400AW, SMA400BW, SMA400AP, SMA400BP, SMA490AW, SMA490BW, SMA490AP, SMA490BP steel plates are often produced with thickness up to 200mm, while SMA400CW, SMA400CP, SMA400CW, SMA400CP, SMA490CW, SMA490CP, SMA570W, AMA570P steel plates are supplied in thickness up to 100mm.

SMA400AW, SMA490AW steel equivalent

GB/T4171-2008	ISO 4952-2006	ISO5952-2005	EN10025-5: 2004	JIS G3114-2004
Q235NH	S235W	HSA235W	S235J0W,J2W	SMA400AW,BW,CW
Q355NH	S355W	HSA355W2	S355J0W,J2W,K2W	SMA490AW,BW,CW

Chemical composition (%) for JIS G3114 atmospheric corrosion resisting steels in 2016 version

Material	C max.	Si	Mn max.	P max.	S max.	Cu	Cr	Ni
SMA400AW, SMA400BW,SMA400CW	0.18	0.15-0.65	1.25	0.035	0.035	0.30-0.50	0.45-0.75	0.05-0.30
SMA490AW,SMA490BW,SMA490CW	0.18	0.15-0.65	1.4	0.035	0.035	0.30-0.50	0.45-0.75	0.05-0.30
SMA490AP,SMA490BP,SMA490CP	0.18	0.55 max.	1.4	0.035	0.035	0.30-0.50	0.20-0.35	-
SAMA570W	0.18	0.15~0.65	1.4	0.035	0.035	0.30~0.50	0.45~0.75	0.05~0.30
SAMA570P	0.18	≤0.55	1.4	0.035	0.035	0.20~0.35	0.30~0.55	-

Mechanical properties in thick up to 16mm

Material	Yield Strength(MPa)	Tensile Strength(MPa)	% Elongation min.
SMA400AW, SMA400BW,SMA400CW	245	400-540	17
SMA490AW,SMA490BW,SMA490CW	356	490-610	15
SMA490AP,SMA490BP,SMA490CP	356	490-610	15
SMA570W	365	570-720	19
SMA570P	460	570-720	19

Our produced JIS G3114 atmospheric corrosion resisting steels in hot rolled condition are widely used for bridges, architecture and other welded structures.

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