Galvanized Steel Sheet: Introduction & Applications
1. Basic Definition
Galvanized steel sheet is carbon steel coated with a layer of zinc through hot-dip or electro-galvanizing processes. The zinc coating provides superior corrosion resistance, extending the material’s service life.

2. Key Advantages
Corrosion Resistance: Zinc acts as a sacrificial layer, protecting steel from rust even in humid or chemical-exposed environments.
Durability: Extended lifespan compared to bare steel, reducing maintenance costs.
Versatility: Suitable for various fabrication processes (cutting, welding, bending).
Cost-Effective: Lower long-term costs due to reduced maintenance and replacement needs.

3. Common Specifications
Thickness: 0.3mm – 3.0mm
Width: 600mm – 2000mm
Zinc Coating: 30g/m² – 600g/m² (e.g., Z60, Z275, Z450)
4. Main Applications
Construction & Architecture

Roofing, wall panels, ceiling systems, and structural frameworks.
Example: Prefabricated steel buildings, roofing tiles.
Automotive Industry

Car body panels, chassis parts, and underbody shields.
Example: Galvanized steel used in car doors and trunk floors.
Appliances & Electronics

Refrigerators, washing machines, HVAC casings, and electrical enclosures.
Example: Outer shells of household appliances.
Packaging & Storage

Containers, drums, and corrosion-resistant storage boxes.
Example: Galvanized steel drums for chemicals or food.
Agriculture & Industry

Farm equipment (e.g., grain silos, fences), industrial racks, and pipelines.
5. Types of Galvanizing
Hot-Dip Galvanized (HDG): Thick, durable coating for outdoor/structural use.
Electro-Galvanized (EG): Thin, uniform coating for precision applications (e.g., electronics).
6. Why Choose Galvanized Steel?
Longevity: Resists rust for decades with minimal maintenance.
Sustainability: 100% recyclable, aligning with green building standards.
Adaptability: Compatible with painting, powder coating, or adhesive bonding.
Standards: ASTM A653 (USA), EN 10346 (Europe), GB/T 2518 (China).