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ASTM A588 Grade B Weathering Steel Angle Steel

ASTM A588 is a high-strength low-alloy (HSLA) structural steel angle with improved atmospheric corrosion resistance. It contains small amounts of copper, chromium, and nickel, which form a protective oxide layer. It offers higher yield strength than standard carbon steel (like A36), allowing for lighter weight designs. Ideal for bridges, buildings, and structures exposed to the weather.

ASTM: A588JIS: SS490WGB: Q355NH

MaterialASTM A588

Thickness3-20mm (Equal), 3-15 mm (Unequal)

Width20-200 mm (Equal), 20x30-90x250 mm (Unequal)

Length6 m, 9 m, 12 m or per request

MOQ1 Ton

Lead Time7-15 days

PortShanghai / Tianjin

Response within 24 hours

In Stock — Ready to Ship

Material Grade	ASTM A588	Standard	ASTM A588
Thickness Range	3-20mm (Equal), 3-15 mm (Unequal)	Width Range	20-200 mm (Equal), 20x30-90x250 mm (Unequal)
Length Range	6 m, 9 m, 12 m or per request	MOQ	1 Ton
Lead Time	7-15 days	Port of Shipment	Shanghai / Tianjin
C	≤0.19	Si	0.30-0.65
Mn	0.80-1.25	P	≤0.04
S	≤0.05	Cu	0.25-0.40
Cr	0.40-0.65	Ni	≤0.40
Tensile Strength	485 MPa	Yield Strength	≥345 MPa