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.



