Weathering Steel COR-TENTM has overcome rust, which is the weakest point of steel, in a unique manner, by actually using rust.
Note:COR-TENTM is a registered trademark of United States Steel Corp.
Features
Weathering Steel COR-TENTM has overcome rust, which is the weakest point of steel, in a unique manner, by actually using rust.
When COR-TEN with bare specifications is left in the atmosphere, rust occurs first in the same way as ordinary steel, but dense protective rust forms on the surface of the steel due to the action of the alloy element over time, inhibiting the later development of further rust.
Weather resistance
Since COR-TEN has excellent weather resistance, it can be used without any coating.
It provides not only the economic effect of a reduction of recoating cost, but an aesthetic effect with sedate color of protective rust.
Coating property
The coating film has a long life, and the recoating cost can be reduced.
Weldability
Welding is easy using any method of manual welding or submerged arc welding, etc.
Spot welding is also possible for thin materials.
Workability
COR-TEN can be subjected to cold working, hot working, and gas cutting in a similar way as ordinary steel with the same strength level.
Aging of rust
COR-TEN exhibits a yellowish appearance in the initial stage of use, and the color gradually changes to brown. Then, as it sits in its surrounding environment, the color changes to a sedate blackish brown in one to two years. Then, the color changes very little once again, but only to a deep brown.
FAQ
Is Corten steel expensive?
Corten steel is more expensive due to the materials used and the specialized production process. Traditional steel rusts and is therefore a less suitable choice for outdoor applications. Polyester is cheaper than corten steel, but does not withstand temperature changes as well and can become porous over time.
What are the disadvantages of corten steel?
Another disadvantage of Corten steel is its susceptibility to rusting. Corten steel is designed to form a protective layer of rust on its surface, but it can break down over time, leaving the steel vulnerable to corrosion.
Does corten steel keep rusting?
To form this protective patina, corten steel needs repeated cycles of wetting and drying. If buried or otherwise prevented from experiencing these cycles, corten steel will not develop the patina and will rust at a similar rate to mild steel.
Is corten steel toxic to humans?
No, Corten Steel is not toxic. These environment-friendly materials are completely safe for humans, animals, and plants.
Is corten steel messy?
Corten steel, when used incorrectly, can be messy.
Company profile
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.
