| 摘要 |
PROBLEM TO BE SOLVED: To provide such a steel sheet as to form a coupling joint superior not only in shear tensile strength but also in peeling strength when jointed with an aluminum-based material by brazing. SOLUTION: The steel sheet is any one of steel sheets selected from the group consisting of a hot-dip galvanized steel sheet and an electrolytically galvanized steel sheet; and comprises, by mass%, 0.05-0.25% C, 1.5% Si or less, 0.1-3.5% Mn, 0.05% P or less, 0.03% S or less, 0.1% or less Al while satisfying C+Mn/40≥0.12, and the balance Fe with unavoidable impurities. COPYRIGHT: (C)2007,JPO&INPIT |
