HOT-DIP COATED STEEL MATERIAL

Abstract

The term refers to hot-dip galvanized steel material with a coating on the surface of the steel material, in which the coating contains AI: greater than 22.5% and less than or equal to 50.0%, Mg: greater than 3.0% and less than or equal to 15.0%, Ca: between 0.03 and 0.6%, Si: between 0.03 and 1.0%, Fe: between 2 and 25%, and the remainder consists of Zn and impurities, and, in the X-ray diffraction pattern of the coating surface, measured under conditions in which the X-ray output has a voltage of 50kV and a current of 300mA using Cu-Ka rays, 11 obtained from the X-ray diffraction peak of greater than or equal to 1.1, and the values ​​obtained from the X-ray diffraction peaks of Zn, Al, and MgZn2 are less than or equal to 0.25.