A natural beauty from the very beginning. Long lasting attraction, year after year, with practically zero need for maintenance. Use COR-TEN® steel to make your mark as an architect, and let it contribute to sustainability at the same time. Genuine COR-TEN® steel is produced by SSAB under a license from US Steel Corporation. COR-TEN® steel from SSAB is easy to work with and give your buildings and products the long-term performance you are looking for. COR-TEN® steel has excellent properties for forming, machining and welding. Read more on SSAB website.