SSAB Weathering and COR-TEN
                        SSAB Weathering and COR-TEN? corrosion-resistant steels


                        SSAB Weathering and COR-TEN® corrosion-resistant steels will minimize total life cycle cost thanks to low or zero maintenance needs. COR-TEN® is a licensed brand and a part of the family of  SSAB Weathering steel.
                        SSAB weathering corrosion test at Bohus Malm?n

                        New insights – SSAB Weathering can reduce maintenance costs of painted steel structures

                        What is COR-TEN® and SSAB Weathering steel?

                        COR-TEN? is high strength, low alloy weldable structural steel with exceptional weathering resistance. The chemical composition of the steel allows for the creation of a layer of rust that coats a building without altering the mechanical characteristics of the steel. This rust layer, not only protects steel products against the elements but also delivers a unique finish that stops most people in their tracks. 

                        What’s more, it’s also more environmentally-friendly than traditional steel.

                        The combination of weather resistance and workshop performance makes SSAB Weathering and COR-TEN? steels a cost-efficient choice for a wide range of applications.

                        Rust – the perfect protection

                        SSAB Weathering steels are extremely high strength and protected by a patina layer of rust that is formed in the oxidation process, when exposed to alternating wet and dry conditions. Thanks to this, unpainted weathering steels require minimum maintenance, the patina will stop any further rusting of the steel.

                        Designing uniqueness into every project

                        Unlike conventional steel, weathering steel has a matt surface, which reduces typical metal reflections. The distinct bronze-like appearance, which changes over time as the surface ages, is created by the oxidation process, which ensures that every project is unique.

                        SSAB Weathering and COR-TEN? give distinctive and attractive exteriors for office buildings, private homes, public art and other outdoor installations.

                        The COR-TEN® patina formation process

                        At first, the steel begins to rust in the same fashion as ordinary mild steel once it’s exposed to wet and dry conditions. However, as time passes, the rust layer transforms into a patina layer, and the color changes from fresh, newly developed orange-brown, to light or dark brown.

                        The speed of change and the final color of the steel are dependent on the atmospheric conditions of a site and the level of pollution – sulfur dense atmospheres will speed up the oxidation process and result in a darker patina. Frequent cycles of wet and dry conditions will also speed up oxidation. The entire oxidation process usually takes between 2 – 6 years.

                        Benefits of using SSAB Weathering steel and COR-TEN®

                        Great for painting

                        Great for painting

                        A painted surface on SSAB Weathering and COR-TEN? usually lasts two times longer compared to paint on ordinary carbon steel.

                        A virtually eternal service life without painting or other maintenance gives weathering steel great environmental benefits

                        Environmentally friendly

                        A virtually eternal service life without painting or other maintenance has great environmental benefits.
                        SSAB Weathering steels have yield strength up to 960 MPa, for strong and light structures that last longer.

                        High strength structural steel

                        SSAB Weathering steels have yield strength up to 960 MPa, for strong and light structures that last longer.

                        Get in touch

                        Call or send an email to inquire about prices and how to order SSAB Weathering and COR-TEN® corrosion-resistant steel.

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