Corten steel is a self-weathering steel valued for its warm, natural, and evolving appearance. Composed primarily of iron with small amounts of alloying elements such as copper, chromium, nickel, manganese, molybdenum, vanadium, titanium, niobium, aluminum, and phosphorus, it is designed to develop a protective patina when exposed to air and moisture.
This surface oxidation layer, with its rich orange, brown, and copper tones, acts as a natural barrier against corrosion. Unlike conventional rust, which can weaken metal over time, the patina of corten steel helps stabilize the surface and protect the material in depth when exposure conditions are appropriate.
This unique behaviour makes corten steel a durable, aesthetic, and evolving material for outdoor furniture, architectural elements, planters, decorative panels, and landscape projects. Over time, each piece develops its own distinctive finish, shaped by its environment, the seasons, and the way it is used.