S380 0.20mm Hot Dip Galvalume Steel Coils Chromated Surface Treated

For galvanized coils, the thin steel plate is immersed in the molten zinc bath to make the surface of the zinc-thin steel plate adhere. It is mainly produced by the continuous galvanizing process, that is, the coiled steel sheet is continuously immersed in a galvanized bath with the molten zinc to make galvanized steel sheet; an alloyed galvanized steel sheet. This kind of steel plate is also manufactured by the hot dipping method, but immediately after leaving the tank, it is heated to about 500°C to form an alloy film of zinc and iron. This galvanized coil has good paint adhesion and weldability.

Alu-zinc coating steel is produced through applying AL-Zn coat on both faces by hot dip process. It enjoys both the physical protective feature and durability of AL and the electrochemical protective property of Zn

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