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.
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At first, the steel begins to rust in the same fashion as any other carbon steel, when exposed to wet and dry weather conditions. However, as time passes, the rust layer transforms into a dense patina layer, sealing-off the steel surface, resisting further corrosion. The color changes from fresh, newly developed orange-brown, to light and eventually dark brown. The speed of change and the final color of the steel depend on the atmospheric conditions of a site and the surrounding air quality. Sulfur dense atmospheres will speed up the oxidation process and result in a darker patina. Frequent cycles of wet and dry weather conditions will also speed up oxidation.
SSAB makes COR-TEN® from the exceptionally clean iron ore extracted in Swedish mines, ensuring a pure final product.
With its anti-corrosive properties, COR-TEN® steel minimizes the need for maintenance and corrosion-prevention treatment, contributing significantly to low maintenance costs throughout the product lifecycle. Making COR-TEN® steel the environmentally friendly choice.
The way COR-TEN® A performs on a building or any other steel structure is a result of the process, the steel’s cleanliness and the chemistry. Based on a century’s old steelmaking tradition, SSAB knows how to keep these parameters and properties in check.
COR-TEN® A has mechanical properties and dimensional tolerances that generally exceed the standards given by EN 10025-5.
COR-TEN® A for building façades and structures conforms to established standards, including EN S355J2WP, ASTM 588 Grade A, ASTM A 242 Type 2 and has the material number 1.8946.
SSAB aims to launch its pioneering fossil-free premium grade steel – revolutionizing the industry by implementing a steelmaking process that does not create fossil-fuel CO2 emissions.
Genuine COR-TEN® steel is produced by SSAB under a license from US Steel Corporation. Using genuine COR-TEN® steel ensures that appearance, longevity and mechanical properties of the material fulfills your expectations, as well as the expectations of your clients.
Crucial to the forming of a solid and long-lasting patina is the alloying elements. The most important are copper, chromium, nickel and phosphorous. They all have to be present in the right proportions. Since COR-TEN® A from SSAB is made at a dedicated steel mill, the chemistry balance it strictly preserved for every batch.
The COR-TEN® steel portfolio includes a wide range of grades with mechanical properties and dimensional tolerances.
Naturally, you want to get the best aesthetics from COR-TEN® steel. When designing with COR-TEN® steel there are a few things to consider. Follow these simple rules and your architecture will leave a lasting impression.
To ensure COR-TEN® is available whenever you need it, you can order from SSAB’s network of local stocks, directly from the mill or from dedicated distribution partners all over Europe. It’s the SSAB way of providing high availability and fast delivery of premium steel.
To protect the rights of the trademark owner, these guidelines should be followed whenever the COR-TEN® brand is used. The trademark guidelines for COR-TEN® are available for download.
