Professional EN 10025-5 S355K2W Weathering Steel
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EN 10025-5 S355K2W Weathering Steel
EN 10025-5 S355K2W Weathering Steel, with its unique alloy composition, forms a stable oxide layer when exposed to atmospheric conditions. This protective layer, also known as patina, prevents further degradation, making it an ideal solution for exposed outdoor environments in industrial, architectural, and structural applications.
S355K2W combines enhanced mechanical properties with exceptional resistance to corrosion, even in highly corrosive environments, such as those found in coastal regions, industrial areas, or regions subject to extreme temperature fluctuations. Whether used in large-scale infrastructure, energy systems, or architectural designs, S355K2W provides both functional and aesthetic benefits, offering a sustainable and cost-effective solution for long-lasting construction.
Material Performance and Technical Properties
Grade: S355K2W (1.8958)
Tensile Strength: 470–630 MPa
Yield Strength: ≥355 MPa (up to 16mm thickness)
Impact Toughness: 40J at -20°C (K2 designation for excellent low-temperature toughness, ideal for colder climates)
Corrosion Resistance: Superior resistance to atmospheric corrosion, forming a stable and self-renewing protective oxide layer that prevents further degradation.
Weldability: Excellent weldability with standard welding processes (MMA, MIG, MAG), without the need for preheating, depending on the thickness.
Formability: High formability, allowing for complex shapes and structures to be fabricated without sacrificing strength.
Surface Protection: Forms a stable protective patina that shields the steel from further atmospheric corrosion, eliminating the need for costly surface treatments and reducing overall maintenance costs.
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