Certified GB/T Q550NH Corten Steel
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional certified gb/t q550nh corten steel manufacturers and suppliers in China. Welcome to wholesale customized certified gb/t q550nh corten steel at competitive price from our factory. Good service and quality products are available.
GB/T Q550NH Corten Steel
Available in plates (6-80mm) and structural sections,GB/T Q550NH Corten Steel maintains excellent mechanical properties across its full thickness range. The steel's unique chemistry ensures uniform patina development while offering outstanding cold-forming characteristics, making it particularly suitable for China's ambitious infrastructure projects requiring both strength and aesthetic appeal.
Ideal for long-span bridges, transmission towers, and architectural landmarks, this steel represents China's cutting-edge weathering steel technology.
Technical Specifications
| Property | Specification |
|---|---|
| Standard | GB/T 4171 Q550NH |
| Yield Strength | ≥550 MPa |
| Tensile Strength | 630-800 MPa |
| Elongation | ≥16% in 50mm |
| Key Alloys | Cu 0.25-0.55%, Cr 0.40-0.80%, Ni 0.12-0.65% |
| Impact Toughness | 34J @ -20°C |
| Thickness Range | 6-80mm |
| Surface Options | Mill finish, blasted, pre-oxidized |
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