Overview
Aluzinc coated steel coil (Aluzinc steel coil) is produced from a cold-rolled steel substrate with a 55% aluminum, 43.4% zinc, and 1.6% silicon alloy coating through a hot-dip process at high temperature. It combines the durable physical barrier protection of aluminum with the electrochemical corrosion protection of zinc. The product offers excellent corrosion resistance, high thermal reflectivity, and outstanding heat resistance. Its thermal reflectivity is significantly higher than that of conventional galvanized steel, and it can withstand long-term service at temperatures above 300 °C. Even if the zinc layer is locally damaged, the dense aluminum oxide layer continues to protect the steel substrate. In addition, the surface provides excellent paint adhesion, and with the same coating weight, it offers greater coverage area, ensuring both performance and cost efficiency.
Applications
Aluzinc steel coils are widely used in building roofing and wall systems, automotive exhaust and structural components, home appliance housings and back panels, agricultural facilities, as well as various industrial equipment requiring high temperature and corrosion resistance.
