Products Description
Corten A is a weather-resistant steel that contains chromium, copper, and nickel. In addition, it includes phosphorous, making this steel reliable for gas applications.
These elements provide excellent anti-corrosive properties. The patina formed on the surface acts as a protective layer against atmospheric corrosion, keeping the underlying steel intact.
Corten A plates are low maintenance and have a long service life due to their high strength and natural corrosion resistance.
In addition, Corten A steel has excellent weldability and can be welded using manual, spot arc, or submerged arc welding processes.
Corten A steel plates manufactured by Gnee's experienced professionals have a unique and attractive appearance, making them ideal for architectural applications.
Chemical Composition
| Grade | Si (%) | Ni (%) | C (%) | P (%) | Mn (%) | Cr (%) | S (%) | Cu (%) | V (%) |
|---|---|---|---|---|---|---|---|---|---|
| Corten A | 0.25-0.75 | 0.65 | 0.12 | 0.07-0.15 | 0.20-0.50 | 0.50-1.25 | 0.030 | 0.25-0.55 | … |
Equivalent Grades
| Steel Grade | Material No. | TKS Standard | EN Standard | ASTM Standard |
|---|---|---|---|---|
| Corten A | S355JOW | ASTM 588 | ASTM A242 Type 2 | 1.8946 |
Mechanical Properties
| Grade | Minimum Yield Strength ReH (MPa) | Tensile Strength Rm (MPa) | Minimum Elongation A (%) |
|---|---|---|---|
| Corten A | 355 | 470–630 | 20 |
Weight Table
| Plate Size (mm) | Weight |
|---|---|
| 1250 x 625 x 1.5 | 9.2 kg |
| 625 x 625 x 1.5 | 4.6 kg |
| 2500 x 625 x 1.5 | 18.4 kg |
| 2500 x 1250 x 2 | 49.06 kg |
| 1250 x 1250 x 1.5 | 18.4 kg |
| 625 x 625 x 2 | 6.13 kg |
| 2500 x 1250 x 1.5 | 36.8 kg |
| 1250 x 1250 x 2 | 24.53 kg |
| 1250 x 625 x 2 | 12.27 kg |
| 2500 x 625 x 2 | 24.53 kg |
Heat Treatment
| Treatment | Temperature (°C) |
|---|---|
| Normalizing | 860–940 (Target 910) |
| Stress Relieving | 550–600 (Target 580) |
Advantages
Long Life and Durability
The natural weathering process of Corten A extends its lifespan, with the patina acting as a corrosion-protective barrier.
Low Maintenance
The self-protective nature of Corten A Steel greatly reduces maintenance needs, making it ideal for projects requiring minimal upkeep.
Cost-Effectiveness
While the initial cost of Corten A Plates may be comparable to other high-performance steels, their long-term durability and low maintenance improve overall cost efficiency.
We Can Provide
Additional Condition:
- Ultrasonic examination
- Thermal Mechanical Control Processing
- Quenched and Tempered
- The Third Party Test (such as SGS Test),
- Coated or Shot Blasting and Painting.
Shipping department:
- Book shipping space
- Documents confirmation
- Shipping track
- Shipping case
Production control department:
- Technical evaluation
- Production Schedule
- Production Tracking
- Successfully complaint case
Gnee Steel can offer large stock supply of Corten A weather resistant steel plate. If you are interested in Corten A weather resistant steel plate, please contact us freely, we are happy to serve you.
FAQ
Q: Can you weld corten steel?
A: Yes, it is possible to weld corten steel to mild steel, but it requires careful attention to detail to ensure a strong and durable weld.
Q: Do you need to seal corten steel?
A: Once the patina layer forms, corten steel requires no additional finishing like paints, stains, or sealants over time.
Q: Can you laser cut Corten?
A: Laser cutting ensures precise, high-volume production with fast turnaround.
Q: What is the difference between Corten A and B steel?
A: The two main types of Corten steel are: Corten A, which is typically used for architectural purposes and Corten B, which has been impact tested meaning it is often used in structures.







