Product Overview
Q355NH Corten Steel Plate is a low alloy, high strength weathering steel manufactured under the Chinese standard GB/T 4171.
This steel is designed to offer superior atmospheric corrosion resistance, excellent mechanical strength, and an aesthetically pleasing rust-red surface that blends durability with visual appeal.
By adding copper, chromium, nickel, and other alloying elements, Q355NH Corten Steel Plate naturally forms a dense, protective oxide layer when exposed to outdoor environments.
This layer significantly reduces corrosion speed and eliminates the need for frequent painting or maintenance, making it ideal for architectural and structural projects exposed to harsh weather.
Available Specifications
Thickness: 10 – 50 mm
Width: 1800 – 2700 mm
Length: 6000 – 12700 mm
Standards: GB/T 4171 (China)
Conditions: AR (As Rolled), N (Normalized), TMCP, Q+T, Shot Blasted & Painted
Testing Options: Ultrasonic Testing (UT), Charpy Impact Test, Z Direction Test (Z15, Z25, Z35), HIC Test, NDT, Third Party Inspection (SGS, etc.)
Chemical Composition
|
Grade |
C (Max) |
Si (Max) |
Mn |
P |
S (Max) |
|
Q355NH |
0.16% |
0.50% |
0.50–1.50% |
≤0.030% |
≤0.030% |
Mechanical Properties
|
Property |
Specification |
|
Yield Strength (MPa) |
325–355 |
|
Tensile Strength (MPa) |
490–630 |
|
Elongation (%) |
≥ 20 |
Key Features
High Strength & Toughness – With tensile strength up to 630 MPa, it can withstand heavy loads and impact without compromising stability.
Outstanding Weather Resistance – Naturally forms a protective rust layer to resist atmospheric corrosion in harsh climates.
Good Weldability & Workability – Suitable for welding, cutting, bending, and forming into complex structures.
Aesthetic Appeal – Distinctive rust-red finish adds a unique visual effect for modern architectural designs.
Applications
Q355NH Corten Steel Plate is widely used in construction, manufacturing, and transportation sectors, including:
Bridges & Towers – Long service life with minimal maintenance
Architectural Facades & Roofing – Combines durability with a natural, rustic look
Landscape & Outdoor Furniture – Benches, sculptures, and decorative panels
Vehicles & Containers – Strong resistance to corrosion during transport
Industrial Equipment – Machinery casings, covers, and protective structures
Advantages
Long-lasting performance in outdoor and industrial environments
Reduced maintenance cost compared to traditional carbon steel
Eco-friendly – Less need for coatings and chemicals
Customizable dimensions and surface finishes available
We supply Q355NH Corten Steel Plate with competitive prices, reliable delivery, and strict quality control. Contact us for:
Pricing and availability
Customized sizes and processing
Technical specifications and certificates
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