Composition introduction and classification of zinc aluminum magnesium steel plate
Zinc-aluminum-magnesium coated steel sheet refers to the coated steel sheet with a certain amount of Al and Mg added to the existing hot-dip galvanized coating or a certain amount of Mg element added to the hot-dip galvanized coating, which has high corrosion resistance and high corrosion resistance. Features of cut edge protection performance.
An inductive analysis of the magnesium-coated steel sheets used in commercial applications shows that the Mg content in most of the coatings is ≤3%, and according to the different aluminum content in the coatings, the zinc-aluminum-magnesium coatings are divided into:
1. Low-aluminum zinc-aluminum-magnesium coating, aluminum content: 1-3.5%, the coating is formed by adding certain aluminum, magnesium and other elements on the basis of hot-dip galvanizing.
2. Medium aluminum zinc aluminum magnesium coating, aluminum content: 5~11%
3. High-aluminum zinc-aluminum-magnesium coating, aluminum content: 55%, this coating is formed by adding certain magnesium and other elements on the basis of hot-dip aluminum-zinc coating.
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