Noun
corten (uncountable)
Any type of weathering steel, a steel alloy which does not require painting and acquires a stable, rust-like appearance over time
Arteflame’s Corten steel-based pedestal grill also has a modern look. Source: Internet
The Kathleen Alexander is thought to be the only houseboat that’s coated in Corten Weathering steel, which purposely rusts to create a protective coating that never needs to be repainted. Source: Internet
The US Steel Building in Pittsburgh and the Picasso statue in Chicago are two appropriate things made from Corten. Source: Internet