GB/T Q355NH Corten SteelCertified
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional gb/t q355nh corten steelcertified manufacturers and suppliers in China. Welcome to wholesale customized gb/t q355nh corten steelcertified at competitive price from our factory. Good service and quality products are available.
GB/T Q355NH Corten Steel
Unlike regular steel, GB/T Q355NH Corten Steel forms a stable, rust-like protective layer when exposed to weather, eliminating the need for painting while maintaining long-term durability. This makes it a cost-effective and low-maintenance solution for outdoor structures.
Q355NH is the Chinese standard grade (GB/T), equivalent to international weathering steel grades like ASTM A588 or EN S355J0WP. It offers excellent weldability, toughness, and weather resistance, making it ideal for construction in harsh environments.
Product Information Sheet:
| Property | Details |
|---|---|
| Standard | GB/T 4171 (Chinese weathering steel standard) |
| Grade | Q355NH |
| Yield Strength | ≥355 MPa |
| Tensile Strength | 470–630 MPa |
| Elongation | ≥22% |
| Impact Toughness | Excellent (tested at -20°C) |
| Corrosion Resistance | 2–8 times better than ordinary carbon steel in open-air environments. |
| Welding & Fabrication | Easy to weld, cut, and shape-no special techniques required. |
| Surface | Develops a rustic, protective patina over time. |
Why Choose Q355NH Corten Steel?
✔ Saves Money – No need for frequent repainting or anti-rust treatments.
✔ Eco-Friendly – Reduces chemical coatings and maintenance waste.
✔ Strong & Long-Lasting – Performs reliably in rain, snow, or coastal salty air.
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