GB/T 4171 Q355NH weathering steel price

Q355NH steel under GB/T 4171-2008 standard is a weathering steel or atmospheric corrosion resisting structural steel for welded structural parts. Compared to Q355GNH high weathering steel, Q355NH steel has better welding property.

Q355NH steel equivalent

GB/T4171-2008	ISO 4952-2006	ISO5952-2005	EN10025-5: 2004	JIS G3114-2004
Q355NH	S355W	HSA355W2	S355J0W,J2W,K2W	SMA490AW, SMA490BW, SMA490CW

Chemical composition (%) in GB/T 4171-2008 standard

Carbon	Silicon	Manganese	Phosphorous	Sulfur	Copper	Chromium	Nickel
≤0.16	≤0.50	0.50-1.50	≤0.030	≤0.030	0.25-0.55	0.40-0.80	≤0.65

Mechanical properties in GB/T 4171-2008 standard

Yield strength(MPa) min for thickness in mm				Tensile strength (Mpa)	Elongation(%)
≤16	>16≤40	>40≤60	>60		≤16	>16≤40	>40≤60	>60
355	345	335	325	490-630	22	22	21	20

Q355NH steel has good quality of atmospheric corrosion resistance, these steel plates can be used in vehicles, bridges, containers, buildings, towers and other welded structural parts. As a weathering steel exporter and supplier, we can supply GB/T 4171 Q355NH weathering steel plates and sheet with competitive price.

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