Products Description
S235J2W is a weathering structural carbon steel plate produced according to EN 10025-5 standards. It belongs to the Corten steel family, which is specially designed to provide enhanced atmospheric corrosion resistance.
Over time, it forms a stable rust-like protective layer on its surface, reducing the need for painting or maintenance while offering a distinctive architectural appearance.
Mechanical Properties of S235J2W Plate
| Property | Unit | Value |
|---|---|---|
| Yield Strength | MPa | ≥ 235 |
| Tensile Strength | MPa | 360 – 510 |
| Impact Test (Charpy V-notch) | J @ +20°C | 27 |
Chemical Composition of S235J2W Plate
| Element | Content (%) | Notes |
|---|---|---|
| Copper | 0.25 – 0.55 | Improves corrosion resistance |
| Chromium | 0.30 – 0.80 | Enhances durability and weathering |
| Nickel | 0.40 – 0.65 | Increases toughness |
| Carbon | ≤ 0.17 | Maintains weldability |
| Manganese | ≤ 1.40 | Improves strength and hardenability |
| Phosphorus | ≤ 0.035 | Controls brittleness |
| Sulfur | ≤ 0.035 | Maintains processing performance |
Key Features of S235J2W Plate
Excellent Weather Resistance
Designed for outdoor exposure, S235J2W develops a protective rust layer over time, which slows further corrosion.
In typical urban or rural atmospheres, the service life without painting can reach 40–60 years, significantly reducing maintenance frequency.
Corrosion rate: ≤0.05 mm/year in moderate climates.
Good Weldability and Formability
Low carbon content (≤0.17%) allows arc welding, MIG, and TIG welding without preheating.
Can be cold-bent or formed to a minimum bending radius of 3×plate thickness without cracking.
Suitable for cutting, shearing, punching, and machining.
Stable Mechanical Performance Under Stress
Yield Strength: ≥235 MPa
Tensile Strength: 360–510 MPa
Impact Energy: 27 J at +20°C (Charpy V-notch)
Maintains strength and ductility in structural applications including bridges, façades, and port facilities.
Reduced Maintenance Costs
Natural protective patina eliminates the need for periodic repainting.
Reduces lifecycle cost by 30–50% compared to painted carbon steel, especially in coastal and humid environments.
Ideal for long-term structural durability in outdoor applications.
Products Applications
S235J2W plates are ideal for architectural façades, bridge railings, port facilities, outdoor sculptures, and shipping containers. They are suitable for any project requiring a combination of structural integrity and long-term exposure to the elements.
S235J2W offers the strength of conventional structural steel combined with the durability and aesthetic benefits of weathering steel, making it a popular choice for architects and engineers seeking low-maintenance, visually appealing, and high-performance outdoor steel structures.
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FAQ
Q: What is S235J2 material equivalent to?
A: EN10025 S235J2 is a carbon steel grade with good structural properties. Some common equivalent materials for EN10025 S235J2 carbon steel plate include: ASTM A36: A widely used structural steel in the U.S. that has similar properties in terms of tensile strength and yield strength.
Q: What is S235J2W steel application?
A: As steel with improved atmosphere corrosion resistance, S235J2W steel has a wide range of applications, architecture, smokestacks, freight wagons, silos, pylons, bridges etc.
