Weathering Steel Guide Part 1: The History of COR-TEN Steel
Explore how weathering steel — often called COR-TEN or Corten — evolved from a utilitarian industrial alloy into a material with powerful architectural appeal. Originally developed in the 1930s for heavy-duty applications, its ability to form a stable, protective rust patina caught the attention of designers in the mid-20th century. Early architectural uses showcase how its rugged, earthy tones and enduring performance reshaped modern design approaches.