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S355J2W

S355J2W is a weathering structural steel offering high strength, good weldability, toughness, and enhanced resistance to atmospheric corrosion.
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S355J2W steel is a weathering steel grade that offers excellent corrosion resistance and structural stability. It belongs to the European standard EN 10025-5, which specifies the technical delivery conditions for structural steels with improved atmospheric corrosion resistance. S355J2W steel is primarily used in construction and architectural applications, where its unique properties allow it to withstand exposure to harsh weather conditions. The steel’s composition includes alloying elements such as copper, chromium, and nickel, which contribute to its enhanced corrosion resistance. With its combination of strength, durability, and weathering capabilities, S355J2W steel is a popular choice for outdoor structures and building facades.  
TRADEMARK EN 10025-5 JIS G3125 BS 4360 Werkstoff Nr. AFNOR
COR-TEN® B S355J2W SPA-C WR 50B 1.8965 S355J2WP
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Typical specification data

Technical reference

Final chemical, mechanical properties, dimensions and tolerances are confirmed against the governing specification and purchase order.

CHEMICAL PROPERTIES | min / max %
Carbon Silicon Manganese Phosphorus Sulfur Nickel Chromium Copper Molybdenum Zirconium
- / 0.16 - / 0.50 0.50 / 1.50 - / 0.03 - / 0.03 - / 0.65 0.40 / 0.80 0.25 / 0.55 - / 0.03 - / 0.15
MECHANICAL PROPERTIES
Tensile Strength (min / max) 74 / 99 ksi 510 / 680 MPa
Yield Point (min) 52 ksi 355 MPa
Elongation A80% ≥17/15 ≥17/15
Elongation A5% ≥ 22/20 ≥ 22/20
Notch Impact Energy (J) ≥ 27 ≥ 27
Temperature -68 (°F) -20 (°C)

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