Products Description
Corten steel weather resistance steel coil, we aslo called it weathering steel identification plate,Corrosion Resistent steel and Anti corrosion steel.Corten steel is a copper chromium alloy steel - this alloy displays a greater level of resistance to atmospheric weathering when compared to other unalloyed steels.It is a weather resistant steel which reacts to natural elements in the atmosphere and forms its own protective layer of rust.
| Standard | Steel Grade | |||
| CORTEN | Corten A | Corten B | ||
| ASTM A588/A588M | A588Grade A | A588Grade B | A588Grade C | A588Grade K |
| ASME SA588/SA588M | SA588Grade A | SA588Grade B | SA588Grade C | SA588Grade K |
| EN 10025-5 | S235J0W | S235J2W | S355J0WP | S355J2WP |
| S355J0W | S355J2W | S355K2W | ||
| EN 10155 | S235J0W | S235J2W | S355J0WP | S355J2WP |
| S355J0W | S355J2G1W | S355J2G2W | S355K2G1W | |
| S355K2G2W | ||||
| TB/T 1979 | 08CuPVRE | 09CuPTiRE-A | 09CuPTiRE-B | 09CuPCrNi-A |
| 09CuPCrNi-B | 05CuPCrNi | |||
| GB/T 4171 | Q295GNH | Q355GNH | Q265GNH | Q235NH |
| Q310GNH | Q295NH | Q355NH | Q415NH | |
| Q460NH | Q500NH | Q550NH | ||
| JIS G 3114 | SMA400AW | SMA400BW | SMA400CW | SMA400AP |
| SMA400BP | SMA400CP | SMA490AW | SMA490BW | |
| SMA490CW | SMA490AP | SMA490BP | SMA490CP | |
| SMA570W | SMA570P | |||
| JIS G3125 | SPA-H | SPA-C | ||
| A242/A242M | A242 Type 1 | A242 Type 2 | ||





FAQ
What is the lifespan of Corten steel?
To tell you frankly, Corten Steel's lifespan can reach up to several decades and, in some cases, even beyond a century, around 40-120 years! Yep, you heard it right – Corten Steel is no one-hit wonder. Its durability is a testament to its unique composition and the formation of that protective rust-like patina.
Does Corten steel need maintenance?
As mentioned above, corten steel is very low maintenance. However, we do recommend regular checks and cleaning to make up part of a periodic maintenance schedule. Remove any packaging from the product as soon as the delivery is received. Shrink wrap or other packaging materials may cause an uneven patina.
How long does it take for corten steel to rust?
Corten Steel, also known as weathering steel, transforms from its original state of a gray metal color to a beautiful orange-brown color. This process takes place over about three to 12 months, depending on how much the steel is exposed to the elements.
Is Corten steel easy to bend?
Straight corten steel: This is the most flexible variant. It is flat and not yet processed, so you can easily bend it.
Can Corten steel be laser cut?
Corten steel is strong, formable, and weldable, developing a protective rust patina over time. Laser cutting ensures precise, high-volume production with fast turnaround. Cor-Ten A (cold-rolled) and Cor-Ten B (hot-rolled) offer extra corrosion resistance, toughness, and weldability for various applications.
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.






