Weathering Steel Overview
Oct 25, 2021
It is characterized in that the alloy composition and weight percentage content of weathering steel are: 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 alloying of Cu, Mn, Si, Al, etc., and simply adjusting the content of some elements of ordinary low carbon steel (Q235 steel), it can produce good atmospheric corrosion resistance without changing the production process of Q235 steel. , Economic weathering steel with comprehensive mechanical properties.
Weathering steel (that is, atmospheric corrosion resistant steel) has been able to sustainably develop and innovate after incorporating modern metallurgical new mechanisms, new technologies and new processes, and is one of the series of steel grades at the forefront of the world's super steel technology. Weathering steel is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the properties of high-quality steel such as strength, ductility, forming, welding, abrasion, high temperature, fatigue, etc.; weather resistance is 2~ of ordinary carbon steel 8 times, the coating performance is 1.5-10 times that of ordinary carbon steel, which can be used in thinner, bare or simplified coating. The steel has the characteristics of rust resistance, corrosion resistance and longevity of components, thinning and consumption reduction, and labor-saving and energy-saving characteristics, which benefit component manufacturers and users. Weathering steel products are used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, and containers containing hydrogen sulfide corrosive media in chemical petroleum equipment
