Galvanized coil is a steel coil with a zinc layer on the surface, which is mainly used for anti-corrosion protection and extending the service life of steel. It is divided into two processes: hot-dip galvanizing and electro-galvanizing. Hot-dip galvanized coil forms a thicker zinc layer by immersing in molten zinc liquid, which has strong corrosion resistance and is suitable for construction, automobiles, transportation and other fields; electro-galvanized coil forms a thinner zinc layer by electrolysis, with a smoother surface, and is mostly used in home appliances, IT and other industries.
Common specifications of galvanized coils include thickness 0.12mm-2mm, width 600mm-2000mm, and zinc layer weight 30g/㎡-275g/㎡, which can meet the needs of different industries. Its advantages include corrosion resistance, good processing performance, and economical and practical. It is widely used in construction (roofs, walls), automobile manufacturing (body, chassis), home appliances (refrigerators, washing machine shells) and transportation facilities (bridges, guardrails), etc.