Weathering steel plate sculpture corrosion-resistant basic principle depends on, weathering steel raw material is a carbon steel, weathering steel is refers to according to add a small amount of aluminium alloy elements (such as Cu, P, Cr, Ni, Mn, Mo, Al, etc.), so that it has a better corrosion-resistant than ordinary carbon steel in the air a kind of high-alloy steel, the surface of its long-term exposure to sunlight under the condition of the production of defensive rust, and then reasonable conduction to block the corrosion of the immersion. Its surface produces a defensive rust layer under long-term sunlight conditions, which reasonably conducts to block the penetration and transmission of leaching substances.
Its air corrosion resistance can be more than 2~8 times of general carbon steel, and the longer the application time, the more prominent its weathering effect. Weathering steel also has high-quality structural mechanics, welding and other characteristics. Because weathering steel can be applied immediately in some natural environments, without the need to carry out paint and other surface safety protection solutions, so the development and design of weathering steel types and corrosion scientific research has been a network of steel research hot spots.
Relative to carbon steel, weathering steel has excellent resistance to air corrosion can be the key reason is: after long-term air exposure to the surface layer of its smooth high-density defensive rust layer, blocking the corrosive substances into the, so has the effect of maintenance.
