Galvanized Steel Coil – Durable Protection with Versatile Applications
Galvanized Steel Coil is a premium steel product coated with a layer of zinc to prevent rust and corrosion, making it ideal for long-term structural use and exposure to outdoor environments. The zinc coating acts as a physical barrier and also provides cathodic protection, ensuring the base metal remains shielded even if the coating is scratched. Our galvanized coils are manufactured through a continuous hot-dip galvanization process, delivering uniform zinc layers and consistent quality. They are widely used in construction, automotive, household appliances, and manufacturing industries due to their excellent formability and high strength.
Technical Specifications
Our galvanized coils are available in a wide range of sizes and meet international standards for quality and performance. The typical product parameters are listed below:
Parameter Specification
Thickness 0.12 – 4.0 mm
Width 30 – 1500 mm
Zinc Coating Z40 – Z275 (g/m²)
Coil Weight 3 – 10 tons
Coil ID 508 mm / 610 mm
Surface Finish Regular Spangle / Zero Spangle / Skin Pass
Standard ASTM A653, JIS G3302, EN 10346
All coils are customizable according to customer requirements regarding thickness, coating weight, and surface treatment.
Key Features and Benefits
Our galvanized steel coil offers a combination of mechanical strength and corrosion resistance. Key features include excellent adhesion between the zinc coating and steel base, smooth surface finish, and superior workability in bending and forming. The zinc layer not only prevents moisture penetration but also provides self-healing properties, which means even minor scratches will not lead to rust. Additionally, our coils offer high tensile strength and can be painted, profiled, or processed further for specific end uses.
Applications and Manufacturing Principle
Galvanized steel coils are used across a wide array of industries. In construction, they are used for roofing, wall panels, ductwork, and framing. In the automotive sector, they serve as structural components, floor panels, and reinforcement parts. In household appliances, galvanized steel forms the casing of refrigerators, washing machines, and air conditioners. The manufacturing principle involves immersing the steel sheet into molten zinc, where metallurgical bonding between iron and zinc occurs, forming a tightly-adhered coating that resists environmental corrosion. This hot-dip process ensures long-lasting protection even in harsh conditions.
