Weathering steel plate is a kind of atmospheric corrosion-resistant steel. With the increase of environmental pollution and the occurrence of severe climate, weathering steel is used as the main building materials in some exposed buildings. Weathering steel plate is made of ordinary carbon steel by adding a small amount of corrosion-resistant elements such as copper, nickel, chromium, etc. it is the same as ordinary carbon steel, and will often produce oxidation reaction with the atmosphere in the atmosphere. 

After reaction, there will be a layer of dense oxide film on the surface of weathering steel plate to firmly stick on the steel surface to prevent further corrosion of the base layer. There are many steels in the market. How to identify weathering steel plate?
The atmospheric corrosion resistance of weathering 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 the steel, 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. The reason is that 6 months ago, the dense protective rust layer of weathering steel plate has not really grown.
Many people are not familiar with weathering steel plate and do not know its properties. They think that rusty iron plate is going to rust. So there will be manufacturers using ordinary steel as weathering steel plate. If you have any need for weathering steel plate, please contact us directly! We specialize in the production of various steel plates, including weathering steel plate.