Hot Dipped Steel Sheet

Abstract: This hot dipped steel sheet comprises a hot dip layer that is formed on the surface of a steel sheet; the hot dip layer contains 4% by mass to 22% by mass of Al and 1.0% by mass to 10% by mass of Mg, with the balance being made up of Zn and impurities; the hot dip layer is provided with a patterned part and a non-patterned part; an element-enriched region containing an element M and an interfacial alloy layer containing Fe and Al are present at the interface between the steel sheet and the hot dip layer in the patterned part; the average concentration of the element M contained in the element-enriched region and the hot dip layer in the patterned part is 0.0010% by mass to 2% by mass; and in the element-enriched region, the element M is enriched to be twice or more of those in the hot dip layer in the patterned part, or alternatively, the element M is unevenly distributed.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents