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October 7, 2023

Understanding S355J0WP Steel and S355J2W+N Plate: Weather-Resistant Steel for Your Projects



When it comes to construction and engineering projects that require materials capable of withstanding the harsh forces of nature, weather-resistant steel becomes a crucial choice. S355J0WP steel and S355J2W+N plate are two such materials that offer excellent weather resistance properties. In this blog, we will delve into these steel types, exploring their characteristics, applications, and the advantages they bring to various industries.

S355J0WP Steel: A Weather-Resistant Marvel

S355J0WP, also known as Corten B, is a weather-resistant steel grade that is designed to offer excellent corrosion resistance against atmospheric conditions. Its name, Corten, is a blend of "corrosion resistance" and "tensile strength," two of its most notable qualities.

Key Characteristics:

Corrosion Resistance: S355J0WP contains alloying elements like copper, chromium, and nickel, which form a protective patina over the surface when exposed to weathering. This patina prevents further corrosion and enhances the material's durability.

Tensile Strength: This steel grade exhibits high tensile strength, making it suitable for structural applications in outdoor environments.

Weldability: S355J0WP steel is weldable using standard welding techniques, allowing for versatility in fabrication.


Architectural structures: Bridges, buildings, and sculptures.
Outdoor industrial equipment.
Transportation: Shipping containers and railway wagons.
Landscaping and garden edging.
S355J2W+N Plate: Enhanced Weather Resistance

S355J2W+N is another weather-resistant steel grade that offers enhanced performance compared to S355J0WP. The "+N" indicates that it is supplied in normalized condition, which improves its mechanical properties.

Key Characteristics:

Enhanced Corrosion Resistance: Similar to S355J0WP, S355J2W+N forms a protective patina that enhances its resistance to corrosion and rust.

Higher Impact Strength: Due to its normalized condition, S355J2W+N exhibits better impact strength and toughness, making it suitable for more demanding applications.

Cold Forming Properties: This steel can be cold formed and welded, making it versatile for various fabrication processes.


Coastal and marine structures.
Offshore oil and gas platforms.
Outdoor architectural and construction projects.
Railway rolling stock.
Container manufacturing.
Advantages of Weather-Resistant Steel:

Longevity: Weather-resistant steel has a longer lifespan compared to conventional steel due to its corrosion resistance.

Low Maintenance: Structures made from these materials require minimal maintenance, reducing long-term costs.

Aesthetic Appeal: The natural patina that develops on weather-resistant steel adds a unique and attractive aesthetic to projects.

Environmentally Friendly: These materials are recyclable and contribute to sustainable construction practices.


In the world of construction and engineering, S355J0WP steel and S355J2W+N plate stand out as excellent choices for projects exposed to the elements. Their remarkable corrosion resistance, high tensile strength, and versatility in fabrication make them valuable assets in the construction industry. Whether you're building a bridge, an architectural masterpiece, or industrial equipment, these weather-resistant materials can help ensure your project withstands the test of time and nature.