| 摘要 |
PROBLEM TO BE SOLVED: To provide a galvannealed steel sheet, more specifically, the galvannealed steel sheet remarkably excellent in anti-welding spatter adhesion properties. SOLUTION: Coating of which the contact angle with molten iron is 90 degrees or more, and the surface area is 1.4-100 times of surface area of a coated layer is formed on the surface of the galvannealed steel sheet having a galvannealed coated layer containing Al: 0.05-0.5 mass%, Fe: 5-17 mass% and the balance Zn with inevitable impurities on one surface or both surfaces of the steel sheet. COPYRIGHT: (C)2011,JPO&INPIT |
