Strenx® weathering steel product group

Strenx^® weathering steels are high-strength structural steel with yield strengths of 700 and 960 MPa. Using steel with such high yield strength levels leaves room for more high-performing designs with increased load-bearing capacity. It permits higher stresses in the structure, allowing the designer to reduce the thickness of the parts. Depending on the starting point, designers can cut up to 30 percent of the weight off steel structures.

The special alloy composition in Strenx^® weathering steel makes it perform differently than ordinary carbon steel. When exposed to alternating wet and dry weather conditions, a protective oxide layer – a patina – is formed on the steel’s surface. This oxide layer prevents further corrosion, resulting in a steel which is practically maintenance-free.

Whenever you need structural performance and want to protect your equipment against corrosion, Strenx^® weathering steel can be your preferred choice. Particularly in transport applications that operate in rough environments where the paint surface can be damaged. Apart from road and rail applications, Strenx^® weathering is used for different types of cranes, agriculture equipment and other load-bearing steel structures that are exposed to the elements.

When painting Strenx^® weathering steel for aesthetic and protective reasons, it also scores high on sustainability. The surface of Strenx^® weathering steel has properties that make it highly suitable for a long-lasting coat of paint. The steel’s surface improves paint adhesion – resulting in a more durable paint layer. The need for repainting can be reduced by 50% during the equipment’s lifespan.

And if the paint is damaged and the steel scratched, the exposed surface recreates a patina layer which effectively seals the steel and minimizes creepage of corrosion under the paint. All in all, this means longer intervals between painting, which in turn reduces the environmental impact from paint production and use. Not to mention the money saved by not having to repaint!

When designing with high-strength structural steel you take advantage of the steel’s high yield strength to make equipment that is both strong and light. You calculate the allowed stresses in the material based on the steel properties and loads. Knowing that Strenx^® weathering steel will maintain it’s thickness adds another level of security and safety margins to structural applications.

See how little corrosion Strenx^® weathering steels encounter over time. When choosing steel thickness, consider the estimated corrosion levels from the calculation.

Calculate how much CO₂ you will save with unpainted Strenx^® weathering steel. If painted, you still reduce CO₂ emissions because you have to repaint the steel as often as with a regular carbon steel.