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Tianjin Guoyu Steel Co.,Ltd.supplies hot-dip galvanized steel coils provide superior rust resistance and long-term performance for a wide range of industrial and construction applications.
Coated with a consistent zinc layer, these coils offer excellent corrosion protection, formability,
and surface qualit—ideal for roofing, wall cladding, automotive parts, ductwork, and general fabrication.
Key Features:
✔ Hot-Dip Galvanized (GI) – Even zinc coating for maximum durability
✔ Strong Corrosion Resistance – Extended service life in harsh environments
✔ Good Weldability & Formability – Easy to fabricate without coating damage
✔ Smooth Surface – Suitable for painting or further processing
✔ Available in Various Grades & Thicknesses – Customizable to your project needs
Appearance: Uniform matte surface
Crystal Size: <0.1mm (not visible)
Best For: Painting/coating, automotive panels, precision parts
Feature: Excellent paint adhesion and formability
Appearance: Visible hexagonal patterns
Crystal Size: 2-5mm
Best For: General construction, structural parts, storage systems
Feature: Balanced performance and cost-effectiveness
Appearance: Prominent shiny crystalline patterns
Crystal Size: ≥5mm
Best For: Architectural decoration, agricultural buildings, visible structures
Feature: Strong metallic luster and decorative appeal
| Brand Name | Tianjin Guoyu Steel Co.,Ltd. |
| Product Name | Galvanized Steel Coil |
| Standard | AISI, ASTM, BS, DIN, EN, GB, JIS |
| Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S550GD; SGCC or Customer’s Requirement |
| Zinc Coating | Z20-Z275 |
| Surface Structure | Regular spangle, small spangle, large spangle, zero spangle |
| Thickness | 0.13-6mm |
| Width | 600-1250mm Or Customer’s Requirement |
| Coil ID | 508/610mm |
| Coil Weight | 3-8 tons or Customer’s Requirement |
| Package | Standard Export Package |
Typical Applications
Construction: roofing, wall panels, structural framing
Automotive: body parts, chassis components
HVAC and ventilation systems
Agricultural and industrial equipment
Storage systems and general fabrication
Quality Assurance at Tianjin Guoyu Steel
Strict Quality Control
Implemented throughout the entire production process.
Raw Material Inspection
Chemical composition, mechanical properties, and surface condition verified before production.
Process Monitoring
Continuous tracking of zinc coating weight, uniformity, and surface quality during galvanizing.
Final Product Inspection
Each batch checked for thickness, dimensions, zinc coating, and appearance before shipment.
Certification Support
Mill Test Certificates (MTC) and inspection reports provided upon request. Come and contact us!
