Galvanized steel coils, a versatile base anti-corrosion metal coating steel, are widely used and indispensable materials in construction, automotive, home appliances, and industrial manufacturing sectors. Wanzhi Group provides production and deep processing services for steel with pure zinc coatings, zinc-aluminum alloy coatings, and zinc-aluminum-magnesium coatings. Products include: Coils, sheets, strips, tubes, wires, etc.
Galvanized Steel Coils – Prepainted
Galvanized Steel Coils serve as the base material for color-coated galvanized coils(PPGI Coil). Applying paint to the surface of galvanized coils enhances the aesthetic appeal and weather resistance of galvanized steel, making it an ideal choice for modern building roofs, wall panels, home appliances, and decorative elements. Wanzhi Group offers customized services for various primer and topcoat materials, paint films, surface finishes, colors, and deep processing.
Galvanized Steel Coils – Alloying elements
Galvanized steel serves as a versatile base material. Beyond applying organic coatings via roll coating on galvanized steel coils, alloy elements can be incorporated into the base steel or galvanized layer to produce alloy-coated steels with enhanced properties, such as aluminum-zinc coated steel and aluminum-magnesium-zinc coated steel.
Base Steel Grades
These range from low-carbon steels (e.g., DX51D, CS B type) to high-strength low-alloy steels (HSLA). These grades contain elements such as phosphorus, manganese, or titanium to enhance strength.
Galvanized Alloys
Pure Zinc: Over 99% pure zinc, offering high cost-effectiveness.
Aluminum-Zinc/Galvalume: A coating containing 55% aluminum, 43.4% zinc, and 1.6% silicon, providing superior corrosion resistance and thermal reflectivity compared to standard galvanizing.
Zinc-Aluminum-Magnesium Alloy/ZAM: Primarily composed of zinc with added aluminum (typically 2-11%) and magnesium (typically 1-3%), exhibiting exceptional self-healing properties.
Galvanized Steel Coils – Forming
Galvanized steel coils are manufactured by coating cold-rolled or hot-rolled steel substrates with a layer of pure zinc. They retain the superior strength, rigidity, ductility, and toughness of cold-rolled steel. Through forming processes, they can be fabricated into various corrosion-resistant metal materials required for construction and industrial applications.
Processing
Roll forming: Continuous forming into profiles such as roofing panels or wall cladding.
Stamping/pressing: Used for component forming in automotive or appliance manufacturing.
Bending/folding: Easily bendable with coating resistance to cracking, suitable for structural components.
Slitting: Can be slit to narrower widths or cut to length for specific applications.
Finished Products
Galvanized roofing panels: Roofing for large or long-span structures, warehouses, roll-up doors, balcony panels, etc.
Galvanized siding: Replaces wood paneling in bathrooms, living rooms, and other areas.
Galvanized facades: Exterior walls for residential, commercial, and industrial buildings.
Galvanized ceiling panels: Integrated with light steel framing systems.
Galvanized steel pipes: For drainage systems, fire protection systems, and ventilation systems.
Galvanized angle steel: For structural support and connections in buildings.
Galvanized channel steel: For building frameworks, bridges, and vehicle manufacturing.
Galvanized steel grating: Covers for drainage channels, storm grates, composite cable trench covers, etc.
Galvanized embedded parts: Galvanized plate embedded weld benches, hot-dip galvanized positioning plates, curtain wall fittings, etc.
Galvanized steel plate fabricated parts: Waterstop plates, embedded iron plates, etc.
Galvanized steel sheet enclosures: Manufacturing of appliance housings for refrigerators, washing machines, air conditioners, etc.
Galvanized steel components: Internal brackets and connectors for appliances, automotive exhaust system parts, seat frames, etc.
Galvanized automotive steel sheets: Manufacturing of vehicle bodies, chassis components, etc.
Galvanized steel enclosures and cabinets: Manufacturing of housings for electronic equipment.
Galvanized steel brackets and connectors: Internal support and connection components for electronic devices.
Galvanized steel guardrails and fencing: Protective barriers and separators for roads, bridges, parks, and similar locations.
Galvanized steel shelving and storage equipment: Applications in warehouses and logistics centers.
Galvanized Steel Coils – Factory
Wanzhi Group operates integrated production facilities equipped with advanced continuous galvanizing lines (CGL). Our factory holds certifications including ISO 9001 (Quality Management) and ISO 14001 (Environmental Management), enabling us to provide product quality certifications and support third-party inspections by agencies such as SGS and BV.
Production Lines
With an annual output exceeding 600,000 tons, our delivery lead times range from a minimum of 5 days to a maximum of 45 days, ensuring stable supply and consistent quality across every batch of steel.
- Hot-dip galvanized steel coils production line.
- Steel coating production line.
- Precision slitting and cut-to-length production line.
- Roll forming and profile production line.
Secure Packaging
Packaging is a critical component. Secure packaging not only prevents potential scratches during transportation but also effectively avoids moisture and rust during ocean shipping. All steel coils and plates from Wanzhi Group are packaged strictly according to international export standards.
- Waterproof plastic woven fabric packaging.
- Lined with moisture-proof paper and plastic film.
- Steel coils secured with steel sleeves or edge protectors.
- Fixed on wooden pallets.
Case Global
Our galvanized coils and pre-painted galvanized coils have been supplied to projects in over 100 countries, including: ventilation duct systems in the Middle East, greenhouses and industrial buildings in Central Asia, solar mounting structures in Europe, and food packaging and building roofing/wall projects in South America.
Customer Feedback
Repeat orders from clients are the best endorsement of our products!
Free Samples
Wanzhi Group maintains a dedicated sample room. We assist customers who have previously purchased from Wanzhi with traceability and provide complimentary samples for quality inspection needs. Our quality control lab conducts tests including salt spray, bending, and chemical composition analysis.
Galvanized steel coils serve as foundational materials across diverse industries. Beyond their exceptional corrosion resistance, durability, and cost-effectiveness, coiled galvanized steel offers superior transportability and storage efficiency. Share your requirements with us to receive a complimentary quote and tailored solutions.