A588 Grade C Weather Resistant Steel


A588 Grade C Weather Resistant Steel Description
A588Gr. C is a corrosion resistant steel, also can be called weathering resistant steel or atmosphere corrosion resistant steel. A588Gr. C also is a high strength low alloy steel, so it is suitable for a lot of applications exposed the weather condition. With its good property ,A588Gr.C is suitable for welded bridges and other structures with the longer life cycle due to its corrosion resistant properties.

Why Choosing A588 Grade C Weather Resistant Steel
A588Gr. C steel is becoming more popular by roll formed product end-users. Its unique look and naturally oxidizing finish make it especially desirable for many architectural projects. A588Gr. C has increased resistance to atmospheric corrosion when compared to other steels. A588Gr. C resists the corrosive effects of rain, snow, ice, fog, and other meteorological conditions by forming a coating of dark brown oxidation over the metal, which inhibits deeper penetration and save the cost for painting or rust-prevention maintenance.

Theory of A588 Grade C Weather Resistant Steel Stop rusting
A588Gr. C Steel never completely stops rusting. The weathering process occurs after the panel come out. It eventually decreases and from that point on the finish acts as a protective coating for the base metal.

This protective coating essentially stops the corrosion. Laboratory analysis of the rust have shown that the alloying elements in the steel, such as copper, chromium, and nickel produced insoluble compounds that clogged the pores at the rust and steel interface, thereby ending the regeneration.

Application of A588 Grade C
ASTM A588Gr. C is mainly used for welded, bolted and riveted constructions e.g. steel frame structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions.

A588 Grade C Supply size
Thickness:4-200mm Width:1500mm-3000mm Length:6000mm-12000mm

A588 Grade C
Delivery Condition:
Hot Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP)

Chemical composition and Mechanical property of A588 Grade B
Grade C% Si% Mn% P% S% Cu% V% Cr% Ni%
A588Gr.C 0.15 0.15-0.40 0.80-1.35 0.040 0.050 0.20-0.50 0.01-0.10 0.3-0.50 0.25-0.50

Grade Yield Strength Tensile Strength Elongation %
A588Gr.C ≥290-345 MPa ≥435-485 MPa 21

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