Cor-ten Steel

Cor-ten Steel, formally known as weathering steel, is a group of steel alloys that form a stable, rust-like patina on exposure to weather, eliminating the need for painting and creating a rich, warm, ochre-to-deep-brown surface that ages beautifully over time and has become a beloved material in contemporary architecture and landscape design. Its combination of structural strength, low maintenance, and distinctive aesthetic has made it a popular choice for facades, sculptures, bridges, retaining walls, and public installations, where its earthy tones provide a striking counterpoint to concrete, glass, and timber. Cor-ten Steel’s material character connects closely to discussions of raw materials and industrial architecture, reflecting an architectural ethos that values honesty of material expression and the visual record of a building’s exposure to time and weather.