Hot Dip Plated Steel Material

Abstract: This hot-dip plated steel material comprises a plating layer having the chemical composition of more than 10.0% and less than 45.0% of Al, 4.0 to 15.0% of Mg, 0.01 to 2.0% of Si, and at least one of 0.03 to 5.0% of Cu and 0.03 to 6.0% of Ag with the balance of Zn and impurities. In the element distribution profile in GDS analysis from the plating layer toward the steel material, CAZmax, the maximum value of CAZ, and CAZmin, the minimum value of CAZ, satisfy the following formulas (1) to (3), when the ratio of the total concentration of the Cu concentration and the Ag concentration to the Zn concentration in the internal region of the plating layer is defined as CAZ. (1): CAZmax/CAZmin=1.20; (2): 0.0005=CAZmin; (3): CAZmax=0.1000

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