Zn Al Mg Hot Dip Plated Steel Sheet

Abstract: This Zn-Al-Mg hot-dip plated steel sheet comprises a steel sheet and a hot-dip plated layer formed on the surface of the steel sheet. The hot-dip plated layer has an average composition including more than 10 mass% and no more than 22 mass% of Al, 1.0-10 mass% of Mg, and a remainder of Zn and impurities. When the thickness of the hot-dip plated layer is denoted by t and a 5-mm square cross-section parallel to the surface is exposed at any of a 3t/4 position, a t/2 position, or a t/4 position from the surface of the hot-dip plated layer, the area fraction of a [Zn phase] of the plating composition in at least one cross section is less than 20%.

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