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Product Description

Weathering steel plate, namely atmospheric corrosion resistant steel plate, belongs to low alloy high-strength structural steel, which can be divided into high weathering structural steel and weathering steel for welding structure according to its main characteristics.
High weather resistance structural steel is made by adding a small amount of copper, phosphorus, chromium and nickel elements into the steel to form a protective layer on the collective surface of metal to improve the atmospheric corrosion resistance of the steel. A small amount of molybdenum, niobium, vanadium, titanium, zirconium and other elements can also be added to refine the grain, improve the mechanical properties of the steel, improve the strength and toughness of the steel, reduce the brittle transition temperature, and make it have better brittle fracture resistance.
The use of high weather resistance structural steel is better than that of welding structural steel due to its atmospheric corrosion resistance. It is mainly used for bolted, riveted and welded structural parts used in vehicles, containers, buildings, towers and other structures. When welding structural members, the thickness of steel shall not be greater than 16mm. The welding performance of weathering steel for welding structure is better than that of high weathering steel, which is mainly used for welding structural parts of bridges, buildings and other structures.