Weather-resistant steel plate COR-TEN for building exteriors and facades.
Weathering steel | COR-TEN steel
Exterior materials shaped by time. Bringing weather resistance and the beauty of aging to architecture.
COR-TEN is a type of steel that not only has weather resistance but also features a unique appearance that changes from reddish-brown to brown and then to a subdued black-brown. It is suitable for applications that require both durability and aesthetic appeal, such as building exteriors, facades, canopies, louvers, handrails, and signs. There are options for uncoated, rust stabilization treatment, and painted specifications, making it important to choose according to architectural design and the surrounding environment. At Kumagai Special Steel, we can provide one-stop services not only for cutting steel plates but also for drilling, bending, and welding fabrication. During the design phase, it is necessary to consider initial flow rust, rust staining on surrounding finishing materials, drainage and water removal, and airborne salt content. Please feel free to consult with us at Kumagai Special Steel!
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basic information
COR-TEN steel is a weather-resistant steel plate developed by Nippon Steel, combining high durability and aesthetic appeal as structural steel. It forms a protective rust layer on its surface in the atmosphere, suppressing the progression of corrosion, making it a material suitable for long-term use without painting. 1. Main Specifications and Characteristics - Steel type classification: Weather-resistant steel plate - Exhibits weather resistance due to protective rust - Higher durability compared to general steel - Reduces maintenance burden over long-term use 2. Features in Processing and Construction - Weldability and workability are equivalent to ordinary steel - Compatible with gas, laser, and plasma cutting - Bending and hole drilling are possible - Streamlined construction due to reduced painting processes 3. Key Performance Points - No painting required, reducing life cycle costs - Calm appearance due to aging changes - High durability and excellent structural reliability Due to these features, COR-TEN steel is widely adopted in fields requiring durability and aesthetic appeal, such as bridges, building exteriors, civil engineering structures, and landscape materials. It is a steel material that contributes to long-term cost optimization while enhancing design flexibility.
Price range
Delivery Time
P3
※Kumagai Special Steel has the number one inventory of COR-TEN steel and has a system for immediate delivery, including cutting and processing, so it takes about a week depending on the lot. Additionally, for special specifications or large lots, it may take longer. Please contact us by email or phone for inquiries!
Applications/Examples of results
Architectural exterior / facade / eaves / louvers / balcony / handrails / signs / billboards / architectural hardware
Line up（3）
| Model number | overview |
|---|---|
| COR-TEN O (a steel type designed with weather resistance in mind) | By forming a stable protective rust, it exhibits high corrosion resistance without the need for painting. Due to the high phosphorus content, careful selection of materials and conditions is necessary during welding construction. |
| COR-TEN 490 (a weather-resistant high-strength steel that combines weather resistance and high mechanical strength) | One of the weather-resistant steel series from Nippon Steel, the specification "490," which emphasizes strength guarantees, indicates a strength classification of 490 MPa grade tensile strength. |
| COR-TEN 570 (high-strength weathering steel that combines weather resistance with even higher mechanical strength) | High-strength grade in Nippon Steel's weather-resistant steel series. The strength category "570" indicates a tensile strength of 570 MPa. It combines weather resistance and high strength, making it suitable for long-lasting structural design. |
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Company information
**Expanding Our Global Steel Business!** We support both **CIF and EX Works (EXW)** terms. **Delivering Japanese Specialty Steel to the World.** Since our establishment in 1913, we have been a specialized trading company of special steel for nearly a century, listening to the needs of many customers and building an ideal relationship between customers and steel manufacturers as a conductor of steel distribution. As a trading company with various processing equipment, including cutting machines and laser cutting machines, we also contribute to reducing our customers' capital investment. Please feel free to contact us if you have any requests.
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