S355J2W+N Steel Plates

S355J2W+N is a weather-resistant structural steel grade that is part of the European standard EN 10025-5. It is designed to have improved atmospheric corrosion resistance and is often used in outdoor and exposed environments. Here are the details, specifications, mechanical properties, and chemical composition of S355J2W+N steel:
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Chemical Composition (Percentage by Weight):

Carbon (C) Silicon (Si) Manganese (Mn) Phosphorus (P) Sulfur (S) Chromium (Cr) Copper (Cu) Nickel (Ni)
0.16% max 0.50% max 0.50-1.50% 0.035% max 0.035% max 0.40-0.80% 0.25-0.55% 0.65% max

Mechanical Properties:

Tensile Strength (at room temperature) Yield Strength (at room temperature) Elongation (in 50mm Charpy V-Notch Impact Test
510-680 MPa 355 MPa min 20% min 27 J (20 ft-lbf) minimum at -20°C (-4°F)

Typical Properties:

Density Thermal Expansion Electrical Conductivity Poisson’s Ratio Modulus of Elasticity (Young’s Modulus)
7.85 g/cm³ (0.284 lb/in³) 12.5 x 10^(-6)/°C (7 x 10^(-6)/°F) 17% IACS (International Annealed Copper Standard) 0.27-0.30 190-210 GPa (27.5-30.5 x 10^6 psi)

Applications for S355J2W+N steel include:

Structural Components: It is used in the construction of buildings, bridges, and other structural components exposed to outdoor conditions.

Architectural Elements: S355J2W+N is often used in architectural features, facades, and sculptures to achieve a rustic and weathered appearance.

Railway Rolling Stock: It can be found in the manufacturing of railway wagons and coal wagons, offering strength and resistance to atmospheric corrosion.

Containers: Some containers, including shipping containers and storage tanks, are made from S355J2W+N steel for its durability and corrosion resistance.

Poles and Light Standards: It is suitable for utility poles, street lighting standards, and outdoor infrastructure.


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