| abstract |
An object of the present invention is to solve the problem relating to the difference in temperature rising rate between a superposed portion and a single sheet portion, and to further improve the corrosion resistance of plating after hot stamping. A first steel sheet and at least one second steel sheet connected to a surface of the first steel sheet via a welding point and having a smaller area than the first steel sheet, The steel sheet is a plated steel sheet having an aluminum-based plating layer on both sides of the first steel sheet, and the second steel sheet is a plated steel sheet having an aluminum-based plating layer on both sides of the second steel sheet, The adhesion amount of the aluminum-based plating layer on the first steel sheet is W1 (g / m 2 ) as an average adhesion amount on both surfaces, and the aluminum-based plating layer on the surface of the second steel sheet that is not in contact with the first steel sheet. The adhesion amount of the plating layer is W2 (g / m 2 ), W1 and W2 are both within the range of 20 g / m 2 or more and 120 g / m 2 or less, and the expressions (1) and (2) Superimposed blank for hot stamping that satisfies the relationship of). [Selection diagram] Fig. 1 |