| 摘要 |
PROBLEM TO BE SOLVED: To provide a brazing sheet capable of raising brazability at low cost by suppressing application quantity of a flux composition.SOLUTION: The present invention provides a brazing sheet with: a core material consisting of aluminum alloy containing magnesium; a jointing material to be laminated on at least one surface of the core material; and a flux layer consisting of a flux composition to be laminated on one surface of the jointing material, in which the flux composition contains a flux component containing [A] KAlF, and [B] AlF, the amount of substance S(mol) of magnesium in the jointing material when the magnesium is heated to 585°C, the amount of substance S(mol) of the flux component containing [A] KAlFof the flux layer and the amount of substance S(mol) of [B] AlFsatisfy the following formula (1). |
