Corten B and S355J0W steel plate are two of the most widely specified grades in the weathering steel industry. While they originate from different standards-Corten B (commonly associated with ASTM weathering steel family) and S355J0W (EN 10025-5 European standard)-they are widely recognized as equivalent in structural and anti-corrosion performance.
S355J0W steel plate
At Gnee Steel, a professional global weathering steel supplier, we provide both Corten B steel plates and S355J0W steel plates from stock, ensuring fast delivery and compliance with international construction and architectural standards.
Technical Comparison of Corten B and S355J0W steel plate
Although they follow different naming systems, Corten B steel and S355J0W steel plate share very similar chemical composition and mechanical properties.
Both are designed to form a dense, protective oxide layer (patina) that prevents further corrosion, making them ideal for outdoor and harsh environments.
Chemical Composition Analysis (Max %)
| Element | Corten B | S355J0W (EN 10025-5) |
|---|---|---|
| Carbon (C) | 0.16 | 0.19 |
| Manganese (Mn) | 0.80 - 1.25 | 0.45 - 1.60 |
| Phosphorus (P) | 0.030 | 0.040 |
| Sulphur (S) | 0.030 | 0.040 |
| Silicon (Si) | 0.30 - 0.50 | 0.55 |
| Chromium (Cr) | 0.40 - 0.65 | 0.35 - 0.85 |
| Copper (Cu) | 0.25 - 0.40 | 0.20 - 0.60 |
| Nickel (Ni) | 0.40 | - |
| Vanadium (V) | 0.02 - 0.10 | - |
Mechanical Properties
| Grade | Yield Strength (MPa Min) | Tensile Strength (MPa) |
|---|---|---|
| Corten B steel | 355 | 470 - 630 |
| S355J0W steel | 355 | 470 - 630 |
Both weathering steel grades offer a minimum yield strength of 355 MPa, making them suitable for bridges, building facades, containers, and structural steel applications requiring long-term corrosion resistance.
Why Choose S355J0W Steel or Corten B Steel?
Standard Compliance
- S355J0W steel plate strictly follows EN 10025-5 European standard
- Ideal for EU infrastructure, CE-marked projects, and public engineering works
Global Availability
- Corten B steel plate is widely recognized worldwide
- S355J0W weathering steel is more commonly stocked in Europe and Asia
- Gnee Steel provides global export support for both grades
Excellent Weldability
Both grades are low-carbon alloy steels with manganese addition, offering:
- Good weldability
- High impact toughness
- Suitable for bridges, railway systems, offshore structures
Gnee Steel Supply Advantage
As a Corten steel supplier, Gnee Steel ensures stable supply of Corten A, Corten B, S355J0W, S355J2W, and K2W weathering steel plates and pipes.
| Service Category | Details | Customer Benefit |
|---|---|---|
| Inventory | Corten B, S355J0W, Corten A (plates, pipes, sections) | Immediate shipment for urgent projects |
| Quality Control | EN 10204 3.1 / 3.2 Mill Test Certificate | Full traceability & compliance |
| Third-Party Inspection | SGS, BV, TÜV, ABS supported | International project approval |
| Processing | Cutting, bending, drilling, welding | Customized fabrication support |
| Lead Time | 3–7 days stock / 20–45 days production | Reliable project scheduling |
| Shipping Ports | Tianjin, Shanghai, Qingdao | Global logistics optimization |
To better support global procurement, Gnee Steel offers flexible commercial and quality assurance systems:
Delivery Time
- Stock items: 3–7 working days
- Custom production: 20–45 days depending on specification
- Fast export shipping for urgent infrastructure projects
Payment Terms
- T/T: 30% deposit + 70% balance before shipment
- Irrevocable L/C at sight accepted
- Flexible terms for long-term partners
Certificates & Quality Assurance
Gnee Steel provides complete international certification support:
- EN 10204 3.1 / 3.2 Mill Test Certificate
- ISO 9001 Quality Management System
- SGS / BV / TÜV / ABS third-party inspection reports
- Compliance with EN 10025-5 / ASTM standards
Typical Applications of S355J0W Weathering Steel
Architectural Facades: Creating the classic "rusted" look without structural degradation.
Infrastructure: Railway wagons, freight containers, and highway bridges.
Energy & Offshore: Structures exposed to high humidity and salinity where painting is impractical.
Choosing between Corten B steel plate and S355J0W weathering steel plate depends on project standards, environment, and certification requirements. At Gnee Steel, our engineering team provides professional guidance to ensure the correct material selection for your project.
Contact Gnee Steel today for real-time stock, technical datasheets, and competitive pricing on weathering steel plates.
Contact now to get S355J0W weathering steel plate Quote
What is the American equivalent of S355J0?
ASTM A572 Grade 50: This is a common equivalent to S355J0 in terms of mechanical properties and usage in construction and structural applications. ASTM A36: While A36 has lower mechanical properties than S355J0, it can sometimes be used as an equivalent in less demanding applications.
What grade of steel is S355J0?
S355J0 is a non-alloy structural steel grade defined by the EN 10025-2 standard. The "S" denotes "structural," indicating its use in constructing buildings, machinery, or infrastructure.
Can S355 be hardened?
S355 is not ideally suited to hardening, though it can be subjected to limited heat treatment process such as case hardening. When hardening S355 heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component.
Can S355 be welded?
S355 structural steel, widely used in offshore, shipbuild- ing, and construction industries, is known for its excellent weld- ability and durability [1], as well as for its corrosion and fatigue characteristics.
