Corrosion resistance of Corten A weather resistant steel plate

Corten A weather resistant steel plate is a kind of atmospheric corrosion-resistant steel. Corten A weather resistant steel plate is smelted by adding a small amount of copper, nickel, chromium and other corrosion-resistant elements into ordinary carbon steel. It is the same as ordinary carbon steel, and will often produce oxidation reaction with the atmosphere in the atmosphere. But after the reaction, Corten A weather resistant steel plate will produce a dense oxide film on the surface of the steel to firmly stick to the surface of the steel to prevent the base from entering step corrosion.

The atmospheric corrosion resistance of Corten A weather resistant steel plate is 2-8 times that of ordinary carbon steel, and the longer the service time is, the more prominent the corrosion resistance is. The principle is that after outdoor exposure, a relatively dense rust layer can be formed on the surface of Corten A weather resistant steel plate, and the rust skin as a protective layer has the effect of corrosion and weather resistance. There is no obvious difference in the rust appearance between ordinary steel and weathering steel within 6 months after rust. The reason is that 6 months ago, the dense protective rust layer of Corten A weather resistant steel plate had not really grown.