Outdoor equipment, evacuation ladders, handrails | Weather-resistant steel COR-TEN
Weathering steel | COR-TEN steel
Reevaluating outdoor steel materials exposed to rain from the perspective of weather resistance.
Outdoor emergency ladders, handrails, fences, frames, and equipment covers made of steel exposed to rain and wind face ongoing challenges with rust prevention and repainting. COR-TEN is a weather-resistant steel that forms a protective rust layer in appropriate environments, suppressing corrosion progression. We offer not only steel plates but also some sizes of shaped steel. Please consult us regarding projects that combine plates and shaped steel, small lot components for repairs, and processed items based on drawings. In structures where water accumulates continuously or in high-salinity environments, an uncoated specification may not be suitable. We will confirm the installation environment and conditions to determine the specifications. 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 load due to 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 - Streamlining construction by reducing painting processes 3. Key Points in Performance - Reduces life cycle costs without the need for painting - 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.
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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 more time. Please contact us by email or phone!!
Applications/Examples of results
Outdoor evacuation ladder / Handrail / Fence / Outdoor platform / Equipment cover / Outdoor building and repair materials
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 standard "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 the weather-resistant steel series by Nippon Steel. The strength classification "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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