The material of galvanized sheet is steel plate coated with a layer of zinc on the surface, which provides a certain degree of corrosion resistance.
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Galvanized sheets are mainly divided into the following types:
Hot-dip galvanized steel sheet
Alloyed galvanized steel sheet
Electro-galvanized steel sheet
Single-sided and differentially coated galvanized steel sheet
Alloy-composite galvanized steel sheet
Hot-dip galvanized steel sheet: The thin sheet is immersed in a molten zinc bath to coat it with a thin layer of zinc. It is mainly produced using the continuous galvanizing method, where the entire coil of steel is continuously immersed in the molten zinc bath.
Hot-dip galvanized non-alloyed steel sheets can be used for general purposes, deep drawing, or crimping. The higher the zinc content in the coating, the better the corrosion resistance, while lower zinc content improves mechanical properties.
Hot-dip galvanized alloy strips can be used for structural, stamping, and cold-forming applications. This material has good weldability and coating adhesion but is prone to peeling during processing.
Electro-galvanized steel sheet: Zinc is applied to the steel sheet through an electroplating process, but the resulting zinc layer is relatively thin, offering weaker corrosion resistance.
Additional Information: Stainless steel achieves corrosion resistance by altering the composition of the steel with trace elements. Electro-galvanized sheets sacrifice zinc to coat conventional steel plates. Temperatures of 200°C and 300°C have no effect on the metal, but depending on the surrounding environment, minor changes may occur over a long period.
