Galvanized coil

Galvanized coil is a kind of galvanized steel coil with anti-rust, corrosion resistance and other characteristics, which is widely used in construction, home appliances, automobiles and other industries. Here are its key messages:
1. Main types
Hot dip galvanized coil (GI) : The zinc layer is thick (usually 20-275g/m²), corrosion resistance is strong, suitable for outdoor environment.
Electrogalvanized coil (EG) : thin zinc layer (10-50g/m²), smooth surface, suitable for precision machining or spraying.
2. Core features
Corrosion resistance: zinc layer insulates air and moisture, prolonging service life.
Machinability: stamping, bending, to meet a variety of molding needs.
Appearance: Can be customized smooth, matte or patterned surface.
3. Common parameters
Thickness: 0.2mm~6.0mm (common 0.3mm~3.0mm).
Width: 600mm~2000mm (customizable slitting)
Zinc layer weight: such as Z60 (60g/m²), Z180, etc., affect the corrosion resistance.
4. Application field
Building: Roof, wall panels, ventilation ducts.
Home appliances: refrigerator, washing machine shell.
Automobile: body parts, fuel tank.
Others: cable bridge, granary, etc.
5. Purchase precautions
Environmental requirements: Select a thick zinc layer (such as Z120 or above) in a high humidity environment.
Processing method: Deep stamping parts are recommended to choose good ductility material.
Standard certification: such as ASTM, JIS, GB, etc., to ensure quality compliance.