Factory Waholesale Price Mill Finish Hot Roll Galvanzied Steel Coil

Advantages of Galvanized Coils

1.Anti-corrosion performance: The galvanized layer forms a protective film of zinc oxide/zinc carbonate through the principle of preferred corrosion by sacrificial anodes, effectively isolating the steel substrate from contact with corrosive media. When the thickness of the hot-dip galvanized coating is ≥45μm, the corrosion rate under salt spray test is ≤1μm/ year, and the corrosion resistance life is 5 to 10 times longer than that of ordinary steel coils.

2.It has a wide range of application scenarios: it is suitable for fields with high requirements for corrosion resistance, such as building steel structures, home appliance manufacturing (such as refrigerator shells), the automotive industry (chassis anti-corrosion parts), and the energy industry (photovoltaic brackets).

3.Easy to process ‌ : The galvanizing process does not affect the strength of the base material and can still maintain the full strength grade of Q235-Q690. Moreover, the work hardening effect can increase the yield strength by 5-10 mpa.

4.Stable processing performance: During stamping and bending, the deformation rate should be controlled (such as the bending radius ≥2 times the plate thickness) to prevent local peeling of the coating. Conventional welding processes can meet the requirements without the need for special welding materials. ‌

5.Long service life: In industrial environments, the corrosion resistance period can reach 10 to 20 years, and in Marine environments, it still remains for 5 to 10 years. Compared with ordinary steel coils, the full life cycle cost is reduced by 30-50%.