Strenx® weathering steel product group
Strenx® weathering grades will give your high-strength steel applications additional protection against corrosion. They are available with yield strengths of 700 and 960 MPa for loadbearing structures with minimum or zero maintenance needs.
SUITABLE APPLICATIONS
Transport solutions on road and rail
TYPE OF PRODUCTS
Hot rolled strip
THICKNESS RANGE
3.0 – 6.1 mm (0.118’’ – 0.240’’)
A wide range of high-strength structural steels for high-performing applications
Strenx® 700 CR W
Strenx® 700 CR W is a cold-rolled weathering steel with a minimum yield strength of 700 MPa, for the lightest load-bearing structures.
Cold rolled strip: 0.7 - 2.1 mm (0.028”-0.083”)
Standard: SSAB specification
Format: Sheet, coil, and slit coil
Strenx® 700 HR W
For weather-resistant structures in transport, lifting and other load-bearing applications.
Impact toughness: 40 J at -20 C
Thickness: 3.0-6.1 mm
Standard: EN 10149-2 S700MC
Format: Hot-rolled Strip
Strenx® 960 HR W
Typical applications include demanding load-bearing structures with extra high demand for strength and lightness.
Impact toughness: 27 J at -40 C
Thickness: 3.0-6.1 mm
Standard: EN 10149-2 S960MC
Format: Hot-rolled Strip
Thickness range
3.0 - 6.1 mm (0.118’’ – 0.240’’)
High strength, high protection with Strenx® weathering steel
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.
The versatility of Strenx® weathering steel
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.
On the road
Trailer chassis
Containers
Timber trailers
On the track
Light rail wagons
Railroad wagons
Tram bodies
Other Equipment
Road safety barriers
Offshore cranes
Agriculture equipment
Painted Strenx® weathering steel combines sustainability with appearance
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!
Safeguarding your equipment’s structural integrity
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.
Made for predictable performance in the workshop
Welding
Strenx® weathering can be welded using any conventional welding method. MAG welding is the most common technique today, since it is very easy to automate for high productivity.
Machining
Strenx® weathering can usually be machined without special equipment. Stable machinery fitted with high-speed steel and carbide tools is recommended when drilling, countersinking, tapping, turning and milling.
Bending
Free bending and roll bending of Strenx® steel plate and strip can be done using standard bending machinery. Uniform properties, close thickness tolerances and high surface quality ensure a predictable bending process.
Thermal cutting
Free bending and roll bending of Strenx® steel plate and strip can be done using standard bending machinery. Uniform properties, close thickness tolerances and high surface quality ensure a predictable bending process.
Mechanical cutting
Mechanical cutting of Strenx® weathering is best performed with guillotine shears. Consider carefully the settings of the cutting machine. The most important factors are clearance, cutting angle and blade hardness. The plate should be allowed to warm up thoroughly to around +20°C (68°F) before it is cut.
Strenx® guarantees
Strenx® guarantees include tight thickness tolerances, tight flatness tolerances and bending properties. The tight thickness tolerances enable you to know the weight more precisely. As a result, you can reduce your safety margins. Precise thickness within a plate and between plates makes for safe and predictable performance in the workshop.
Our Vision
To establish Sai Steel as a globally recognized, tender-ready manufacturing hub for custom fabrication, industrial components, and engineered structures. Through continuous investment in technology, export infrastructure and partnerships, we aim to lead in quality, precision and service excellence across continents.
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