| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hot pressing steel sheet in which liquid metal brittleness cracking is hard to be generated even in hot pressing conditions having a short carrying time for the purpose of the improvement of productivity, and excellent in liquid metal brittleness resistance.SOLUTION: This invention relates to a hot pressing steel sheet, comprising: a first plating layer comprising P of 1-20 mass%, and the balance Ni with inevitable impurities, wherein coating weight per side is above 5 to 50 g/m, on the surface of a steel sheet; and a second plating layer comprising 9 to 25 mass% of Ni, and the balance Zn with inevitable impurities, wherein coating weight per side is 10 to 90 g/m, on the upper layer of the first plating layer.</p> |
