Corten steel is a line of specialized alloy steels that forms a protective oxide layer naturally. This layer drastically slows the rusting process after initial surface oxidation. Its unique blend offers better weather resistance than unalloyed steels. Screens develop surface rust quickly before deep corrosion comes to a halt. This property lets them last decades without rusting through completely. The result is a natural patina requiring no extra maintenance at all. This patina ensures exceptional durability for long-term use. These screens are popular for commercial and civic projects alike. They also bring timeless charm to any residential backyard space.