With Certified GB/T Q550NH Corten Steel
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional with certified gb/t q550nh corten steel manufacturers and suppliers in China. Welcome to wholesale customized with certified gb/t q550nh corten steel at competitive price from our factory. Good service and quality products are available.
GB/T Q550NH Corten Steel
Unlike regular steel, GB/T Q550NH Corten Steel forms a stable, rust-like protective layer (patina) when exposed to weather, eliminating the need for painting while maintaining structural integrity. This steel offers excellent weldability, toughness, and fatigue resistance, making it ideal for long-term outdoor applications.
Product Information Sheet:
Standard: GB/T (Chinese National Standard)
Grade: Q550NH
Yield Strength: ≥550 MPa
Tensile Strength: 630-800 MPa
Elongation: ≥18%
Corrosion Resistance: 2–8x better than carbon steel (depending on environment)
Key Elements: Added phosphorus, copper, chromium, and nickel for enhanced weathering properties.
Surface: Develops an even, self-healing patina over time.
Main Applications in Industrial Construction:
Bridges & Highways: Used for corrosion-resistant girders, guardrails, and support structures.
Building Facades: Modern architectural designs (e.g., rust-colored exteriors).
Transmission Towers & Power Plants: Durable framework for harsh environments.
Shipping Containers & Rail Cars: Withstands moisture and salt exposure.
Outdoor Sculptures & Landscaping: Combines aesthetics with low maintenance.
Why Choose Q550NH?
Saves costs (no repainting, longer lifespan).
Eco-friendly (reduces chemical coatings).
High strength-to-weight ratio for lightweight designs.
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