How Corten Steel Compares to Traditional Steel November 7, 2024 Business Signs Exterior Signs Corten steel, also known as weathering steel, is a specialized group of steel alloys engineered to work well outdoors. Its most notable characteristic is the formation of a protective patina when exposed to atmospheric conditions. Corten steel was first used for building railroads in the 1930s. Since then this versatile material has been used for... Read More