ALUMINUM ALLOY BRAZING SHEET FOR HEAT EXCHANGERS AND ALUMINUM ALLOY BRAZED ARTICLE FOR HEAT EXCHANGERS

摘要

Disclosed is an aluminum alloy brazing sheet (1) for heat exchangers, the brazing sheet provided with a core material (2) and a filler material (3) that comprises an Al—Si—Zn alloy and is formed on at least one side of the core material (2). The core material (2) has a pitting potential of −650 mV or more (vs. Ag/AgCl). The filler material (3) has a zinc concentration of from 1 to 10 percent by mass; a liquid fraction X, at the brazing temperature, satisfying the relation 0.3≦X≦0.88; and a clad ratio d (%) satisfying the relation 15