COR-TEN® / S355J0WP

Weathering steel - Equally complies to S355J0WP according to EN 10025-5 with CE mark

COR-TEN® was introduced in 1933 by United States Steel Corporation as “CORrosion resistant high TENsile steel”. The product development was aiming for improved atmospheric corrosion resistance, but the final chemical composition also resulted in a - for that time - truly “high strength steel”, with a yield strength of min. 345 Mpa and a tensile strength of min. 485 Mpa. In addition to a longer lifespan due to the improved corrosion resistance, it was now also possible to design thinner (lighter) structures.

One of the very first applications of COR-TEN weathering steel was found in the construction of railway freight wagons. Many other applications, both industrial and architectural, would follow.

COR-TEN® is still, or perhaps more than ever, popular amongst architects because of its natural appearance, which can be combined well with modern construction materials, such as wood, concrete, glass, stainless steel, etc.

Various industries are also making undiminished use of COR-TEN® because of its longer lifespan and lower maintenance costs compared to non-weather-resistant steel and the price compared to stainless steel.

Today, COR-TEN® weathering steel is increasingly used in combination with paint coating systems. The adhesion between the steel surface and the primer is undoubtedly good. In case of damage to the final coating, exposing the steel surface, the patina formation starts immediately, and the damaged zone is sealed-off from the atmosphere, preventing (creep) rust.

Specialty Steel Sheet offers you the original COR-TEN® A in a contemporary version, which also fully meets the requirements of S355J0WP according to EN 10025-5, with dual certificate according to EN 10204 3.1, with CE marking for S355J0WP, produced by SSAB in Sweden and Finland.

Longer lifespan, less maintenance, fully recyclable, it seems that the use of COR-TEN® can also contribute to sustainability.