Corten Roofing is the latest trend in roofing products and architecture. Its unique look and naturally oxidizing finish provides a beautiful color and texture. It is the ultimate no care product because no one ever has to paint or scrape rust. Cor-ten is a trademarked name owned by U.S. Steel. This is not available. What is available is steel in an A606-4 finish. When someone needs corten on the West Coast they are normally referring to A606. If you want cor-ten steel this will be the best available option.Weathering steels, such as ASTM A588, A242, A606 and Corten exhibit superior corrosion resistance over regular carbon steel as a result of the development of a protective oxide film on the metals surface which slows down further corrosion. We also sell bare cold rolled metal roofing. Bare cold rolled steel will give you a very similar look at a lower price, but will have a lesser lifespan.