Product Overview
The 09CuPCrNi-B Corten Steel Plate is a high-performance, atmospheric corrosion-resistant steel that offers superior durability and structural strength.
Compared to Corten A and 09CuPCrNi-A, the phosphorus content in 09CuPCrNi-B Corten Steel Plate is lower, providing excellent weldability and forming performance.
By alloying copper, chromium, and nickel, this steel develops a stable, dense protective rust layer that greatly extends service life while minimizing maintenance.
Chemical Composition (%)
| Grade | C (max) | Si | Mn | P | S (max) | Cr | Cu | Ni |
|---|---|---|---|---|---|---|---|---|
| 09CuPCrNi-B | 0.12 | 0.10–0.40 | 0.20–0.50 | 0.06–0.12 | 0.020 | 0.30–0.65 | 0.25–0.45 | 0.25–0.50 |
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength | 265–295 MPa |
| Tensile Strength | 402–431 MPa |
| Elongation | 24–27% |
Available Specifications
Thickness: 2–450 mm (standard), 1.6–55 mm (special orders)
Width: 1000–4200 mm
Length: 3000–18000 mm
Delivery Condition: Hot Rolled / Cold Rolled
Surface Treatment: Shot blasting, painting, or coating
Technique: Hot Rolled
Key Features & Advantages
Superior Corrosion Resistance – Weather resistance is 2–8 times higher than ordinary carbon steel, with load-bearing capacity 1.5–10 times greater.
Low Maintenance – Self-forming rust patina eliminates the need for painting in many applications.
Excellent Mechanical Properties – High toughness, plasticity, formability, and welding performance.
Cost Efficiency – Enables thinner design and reduced weight, saving materials and energy.
Wide Temperature Range – Resistant to high temperatures, abrasion, and fatigue.
Applications
The 09CuPCrNi-B Corten Steel Plate is widely used in:
- Railway vehicles and bridges
- Engineering machinery
- Towers and power plant structures
- Shipping containers
- Harbor and seaport construction
- Oil derricks and offshore platforms
- Architectural facades and sculptures exposed to the atmosphere
Comparison with 09CuPCrNi-A Corten Steel
Both grades offer excellent atmospheric corrosion resistance, but 09CuPCrNi-B has lower phosphorus content, improving weldability for heavy structural applications.
The 09CuPCrNi-A variant is often used in railway, oilfield, and chemical equipment manufacturing, while 09CuPCrNi-B Corten Steel Plate is preferred for bridges, towers, and container manufacturing.
Standards & Equivalent Grades
Chinese Standard: 09CuPCrNi-B, Q355NH, Q235NH, Q295NH, Q345NH
International Equivalents: Comparable to ASTM A588 / Corten B weathering steel grades
The 09CuPCrNi-B Corten Steel Plate combines exceptional corrosion resistance, high strength, and long service life, making it an ideal material for structural and decorative applications where both performance and aesthetics are critical.
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