ASTM A588 weathering steel is a high strength low alloy structural steel specification with higher strength and improved atmospheric corrosion resistance in structural steel shapes such as angles, channels and beams, as well as steel plates and reinforcement.
ASTM A588 weathering steel is a standard specification for high strength low alloy structural steels with a minimum yield point of 50 Ksi. ASTM A588 weathering steel has atmospheric corrosion resistance in applications requiring strength and durability. The required ASTM A588 weathering steel corrosion resistance index must be 6.0.
The ASTM A588 weathering steel specification is primarily used in unpainted applications and is important for weight savings or increased durability and longer service life due to its corrosion resistance and / or aesthetic appearance.
The atmospheric corrosion resistance of ASTM A588 weathering steel is better than that of A36, a572-50, etc. When properly designed and exposed to the atmosphere, the ASTM A588 weathering steel is suitable for many applications in unpainted conditions. ASTM A588 weathering steel has a minimum yield strength of 50 Ksi and a minimum tensile strength of 70 Ksi.
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