Patent ID: 9175375
Filing Date: 2015-11-03
Classification: B32B,C09D,C23C,Y10T

Abstract:
1. A hot-dip galvanized steel sheet characterized in that, on a glow discharge spectrometer (GDS) graph of the hot-dip galvanized steel sheet comprising, in the following order, a base steel sheet, a coating layer of a metal having a level of Gibbs free energy equal to that of Fe or above and an oxide of the metal, and a hot-dip galvanized layer, a peak of the metal is disposed closer to the hot-dip galvanized layer than a peak of oxygen, wherein the metal is one or more selected from the group consisting of Ni, Co, Cu, Sn, and Sb, and wherein a content of oxygen at the peak of oxygen is in a range of 0.05 wt. % to 1 wt. %.