Products Description
S355J2WP Corten steel is a high-strength, hot-rolled, weathering steel (also known as Corten) that forms a protective, self-rusting layer to resist atmospheric corrosion. It's defined by the European standard EN 10025-5, with 'S' for structural steel, '355' indicating a minimum yield strength of 355 MPa, 'J2' denoting its impact energy test quality, 'W' for improved corrosion resistance, and 'P' signifying its higher phosphorus content for enhanced protection. This makes it ideal for architecture, bridges, silos, and other applications where both strength and an attractive, naturally evolving appearance are desired.
Naming convention breakdown
The designation S355J2WP provides specific information about the steel's properties based on the European standard EN 10025-5.
S: Structural steel.
355: The minimum yield strength of 355 MPa for thicknesses up to 16mm.
J2: Indicates that the material has undergone an impact test with a minimum impact energy of 27 Joules at -20°C.
W: Signifies that it is a weathering steel with improved atmospheric corrosion resistance.
P: Denotes a high phosphorus content, which contributes significantly to its corrosion-resistant patina.
S355J2WP corten steel chemical composition:
| Grade | C | Mn | Cr | Si | N | S | Cu | P |
| S355J2WP | 0.15 | 1.1 | 0.25- 1.35 | 0.8 | 0.01 | 0.035- 0.04 | 0.20- 0.60 | 0.05- 0.16 |
S355J2WP corten steel mechanical properties:
| Thickness (mm) | ||||||
| S355J2WP | ≤ 16 | > 16 ≤ 40 | > 40 ≤ 63 | > 63 ≤ 80 | > 80 ≤ 100 | > 100 |
| Yield strength (≥Mpa) | 355 | 345 | 345 | 345 | 345 | 345 |
| S355J2WP | < 3 | ≥ 3 ≤ 100 | > 100 | |||
| Tensile strength (Mpa) | 510-680 | 470-630 | 470-630 | |||
Common applications
The material's strength, durability, and corrosion resistance make it suitable for exposed structural applications and aesthetic design.
- Architectural components and facades
- Bridges and pylons
- Freight containers and railway wagons
- Smokestacks, chimneys, and silos
- Sculptures and public art installations
FAQ
What is the equivalent to S355J2WP?
The equivalent grade of S355J2WP under NFA 35-502 standard is E 36 WA 4. And S355J2WP equivalent grade of UNI standard is 510D1K1.
What is the meaning of S355J2W N?
S355J2W+N is a specialized weathering steel grade with an addition of nickel (N) in its chemical composition.
What is equivalent to S355?
S355 Equivalent Plate Grade
ASTM has identified A572-50 as an acceptable substitution for S355. Both grades have similar chemical compositions and are high-strength, low-alloy structural steels.
What is equivalent steel material to S355J2W steel plate
Comparasion of chemical composition and mechanical property for Corten B steel plate and S355J2W steel plate,they are very similar.
Is Corten steel the same as A588?
ASTM A588 is also referred to as Corten® and covers structural shapes, plate, and bar.
About Gnee
Founded in 2008, Gnee (Tianjin) Supply Chain Group Co., Ltd. specializes in the global trade and processing of Corten steel products.
• We handle all kinds of Corten engineering projects, such as bridges, gardens, hotels, and facade systems.
• Compliant with ASTM, EN, and other international standards; third-party inspection supported.
• Exported to over 200 countries and regions worldwide.
• 8 subsidiaries across China and overseas, ensuring global service coverage.
Application Fields: Architecture, landscaping, gardening, cladding, and urban infrastructure.
