What is weathering steel?

Weathering steel, that is, atmospheric corrosion resistant steel, is a low alloy steel series between ordinary steel and stainless steel. Weathering steel is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion resistant elements, and has the characteristics of high quality steel, such as strength, plastic extension, molding, welding and cutting, abrasion, high temperature and fatigue resistance. The weather resistance is 2 to 8 times that of ordinary carbon steel, and the coating property is 1.5 to 10 times that of ordinary carbon steel. At the same time, it has the characteristics of rust resistance, corrosion resistance and life extension,

 thinning and consumption reduction, lab

or saving and energy saving. Weathering steel is mainly used in railway, vehicle, bridge, tower, photovoltaic, high-speed engineering and other long-term exposure to the atmosphere of the use of steel structures. Used in the manufacture of containers, railway vehicles, oil derricks, harbor buildings, oil platforms and chemical and petroleum equipment containing hydrogen sulfide corrosive medium containers and other structural parts.

Overview of weathering steel

Its characteristics are: the alloy composition and weight percentage content of weathering steel is :C:≤0.12, Si:0.25~0.75, Mn:0.2~0.5, S ≤0.02, P:0.06~0.12, Cu:0.25~0.5, Cr:0.3~1.25, Ni:0.12~0.65, The rest are Fe and trace elements. Through the alloying of Cu, Mn, Si, Al and other elements, and simply adjust the content of some elements of ordinary low carbon steel (Q235 steel), without changing the production process conditions of Q235 steel, we can produce economic weathering steel with good atmospheric corrosion resistance and comprehensive mechanical properties.

Weathering steel (that is, atmospheric corrosion resistant steel) can be sustainably developed and innovated after integrating new mechanisms, new technologies and new processes of modern metallurgy, and is one of the series of steel at the forefront of the world's super steel technology. Weathering steel is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion resistant elements, which has the characteristics of strength, plastic extension, molding, welding and cutting, abrasion, high temperature and fatigue of high-quality steel. The weather resistance is 2 to 8 times that of ordinary carbon steel, and the coating property is 1.5 to 10 times that of ordinary carbon steel, which can be used thinly, exposed or simplified. The steel has the characteristics of rust resistance, corrosion resistance and prolonging life of the component, thinning and reducing consumption, saving labor and energy, benefiting the component manufacturers and users. Weathering steel products for the manufacture of containers, railway vehicles, oil derricks, port buildings, oil platforms and chemical and petroleum equipment containing hydrogen sulfide corrosive medium containers and other structural parts.