What are the features of atmospheric corrosion-resistant steel?

Weathering steel, also known as atmospheric corrosion-resistant steel, originated from Corten steel in North America. It is a low-alloy steel series between ordinary steel and stainless steel. Atmospheric corrosion-resistant steel is made of plain carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the toughness, ductility, forming, welding and cutting, corrosion, high temperature, fatigue resistance and other characteristics of high-quality steel.

Principle of atmospheric corrosion-resistant steel

Rusting in the natural climate causes the steel material to form a dense oxide layer between the rust layer and the substrate. Due to the existence of this dense oxide film, oxygen and water in the atmosphere are prevented from penetrating into the steel matrix, thereby improving the resistance to atmospheric corrosion.

Features of atmospheric corrosion-resistant steel

1. Rust and corrosion resistance, with 4-8 times higher atmospheric corrosion resistance than ordinary steel

2. The materials are recyclable, very low-carbon and environmentally friendly

3. Steel parts are resistant to corrosion and life extension, thinning and consumption reduction, saving labor and energy (weather resistance is 2-8 times that of ordinary carbon steel)

4. Green environmental protection does not require initial painting (in areas with severe atmospheric pollution or non-particularly humid areas); it can reduce the use of fireproof coatings and fireproof coatings, thereby reducing pollution, shortening the construction period, reducing costs and reducing maintenance. "Green and environmental protection", sustainable development of economical steel.