What are the characteristics of weathering steel?

It refers to low-alloy structural steel with a protective rust layer that resists atmospheric corrosion and can be used to manufacture steel structures such as vehicles, bridge towers, and containers. Compared with ordinary carbon steel, weathering steel has better corrosion resistance in the atmosphere. Compared with stainless steel, weathering steel only contains trace amounts of alloying elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium, etc. The total amount of alloying elements only accounts for a few percent, unlike stainless steel, which reaches More than ten percent, so the price is relatively low.