Products Description
S355J0WP is a structural weathering steel, also known as atmospheric corrosion-resistant steel (equivalent to Corten A grade). Its primary alloying elements are chromium, nickel, and copper, with added phosphorus, imparting exceptional self-protective properties to the steel.
When exposed to the atmosphere over time, the steel surface gradually forms a stable protective rust layer that effectively resists corrosion from wind and rain, marine salt spray, acid rain, and industrial pollutants. Its corrosion resistance is 2–8 times that of ordinary carbon steel.
In terms of mechanical properties, S355J0WP atmospheric corrosion-resistant steel plate demonstrates outstanding performance: yield strength is ≤355 MPa for thickness ≤16 mm, 345 MPa for 16–40 mm thickness, and 335 MPa for 40–63 mm thickness.
Tensile strength ranges from 470–630 MPa with elongation ≥20%. Impact energy in 0°C impact tests reaches ≥31 J, enabling it to withstand high loads and impacts.
With its weather resistance, strength, and natural rust-brown surface effect, S355J0WP weathering steel plate is widely used in steel bridges, chimney exhaust systems, steel sculpture structures, and other outdoor steel constructions.
It ensures long-term structural safety while reducing maintenance costs, presenting a unique natural, rustic aesthetic that provides a durable and economical solution for engineering projects.
Specification
Grade : S355JOWP Corten Steel Plates
Standard : ASTM A242 / ASME SA242
Width : 750mm to 1500mm,
Length : 2500mm to 12000mm
Thickness : 3MM to 50mm
Type : Corten Steel / High-Strength Low-alloy Structural Steel
Process : Hot-Rolled (HR)
Mechanical Properties of S355JOWP
| Grade | Min. Yield Strength ReH MPa | Tensile Strength Rm MPa | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Nominal Thickness (mm) | Nominal Thickness (mm) | ||||||||
| <16 | >16 <40 | >40 <63 | >63 <80 | >80 <100 | >100 <150 | >3 | >3 <100 | >100 <150 | |
| S355JOWP | 355 | 345 | 510/680 | 470/630 |
S355JOWP Chemical Composition
| % | |
|---|---|
| C | 0.12 |
| Si | 0.75 |
| Mn | 1.00 |
| P | 0.06/0.15 |
| S | 0.035 |
| N | 0.009 |
| Cr | 0.30/1.25 |
| Cu | 0.25/0.55 |
Worldwide equivalents of grade S355JOWP
| EU EN |
USA - |
Germany DIN,WNr |
Japan JIS |
France AFNOR |
England BS |
European old EN |
Italy UNI |
China GB |
Poland PN |
Czechia CSN |
Inter ISO |
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| S355J0WP (1.8945) |
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About Us
At Gnee, product safety is at the heart of everything we do. From raw materials to finished goods, we ensure every step in the production chain meets rigorous international safety standards.
Our Safety-Related Certifications Include:
ISO 45001:2018 Occupational Health & Safety Management
Guarantees a safe working environment in compliance with global safety practices.
EN 1090 + A1 CE Certification for Structural Steel
Ensures mechanical integrity and safety for demanding structural applications in the EU.
SGS / TUV / BV Mechanical Property Test Reports
Verifies yield strength, tensile strength, and impact resistance according to global safety norms.
MSDS (Material Safety Data Sheet) - Available upon request
Offers safety guidance for handling, transport, and storage of our steel products.
Gnee is committed to more than just high-performance steel - we deliver safe and dependable solutions for every project.
