Description
S355J2W+N Plates
S355J2W+N is a high-strength, low-alloy weathering steel known for its atmospheric corrosion resistance, which forms a protective rust-like layer over time. The “+N” indicates it has undergone a normalization heat treatment, which enhances its mechanical properties. This grade of steel is commonly used for outdoor structures like bridges and facades, and its properties make it suitable for the oil and gas, and chemical industries.
EN 10025-5: 2004 Hot rolled products of structual steels. Technical delivery conditions for structural steels with improved atmospheric corrosion resistance
S355J2W+N Chemical Composition :
| C | max 0.13 |
| Si | max 0.4 |
| Mn | 0.2 – 0.6 |
| P | max 0.035 |
| S | max 0.03 |
| Cr | 0.4 – 0.8 |
| Cu | 0.25 – 0.55 |
| CEV | max 0.44 |
Characteristics of S355J2W+N :
Weathering Resistance : It resists atmospheric corrosion by forming a stable, protective layer on its surface. This layer minimizes the need for maintenance and painting.
Normalization (+N) : The “+N” designation means the steel has been normalized, a heat treatment that refines the grain structure and improves its mechanical properties.
High Strength : It is a high-strength steel with good tensile, yield, and stress-to-rupture strength, making it durable for heavy loads.
Corrosion Resistance : It shows good resistance to pitting, crevice corrosion, and intergranular attacks in addition to atmospheric corrosion.
Versatility : It maintains good performance in various temperature conditions and is used in applications ranging from cryogenic to high-temperature setups.
Applications of S355J2W+N Plates :
• Bridges and walkways
• Architectural facades
• Containers, tanks, and railway vehicles
• Outdoor structural components
• Industries such as petrochemical, oil and gas, and chemical processing