| 摘要 |
PROBLEM TO BE SOLVED: To provide a vessel steel sheet excellent in film adhesion, coating material adhesion and even appearance.SOLUTION: The vessel steel sheet comprises: a plated steel sheet including a steel sheet, a plating layer covering at least a part of the surface of the steel sheet and consisting of at least one layer selected out of a Sn layer, an Fe-Sn-Ni alloy layer and an Fe-Sn-alloy layer and a coating arranged on a surface on the plating layer side of the plated steel sheet. The coating includes Ti and Ni and has a coating weight of 3.0 mg/mor more and less than 60.0 mg/min terms of Ti per one surface of the steel sheet having the plating layer and a coating weight of 1.0 mg/mor more and 10.0 mg/mor less in terms of Ni per one surface of the steel sheet having the plating layer. In the coating, a Ni ratio in a 1/4 thickness on the side of the plated steel sheet (a coating weight in terms of Ti per one surface of the plated steel sheet/a coating weight in terms of Ti per one surface of the plated steel sheet) is larger than that in a 1/4 thickness on the opposite side to the plated steel sheet side. |
