Method of forming a heat exchanger with components comprising an aluminum alloy containing reduced amounts of magnesium
 A method of forming a heat exchanger includes brazing heat exchanger components with a flux of non-corrosive fluoride complexes. The components comprise an aluminum alloy having improved brazing characteristics and containing 0.3 to 0.8% Mg, 4.0 to 8.0% Zn, one or more of 0.05 to 0.30% Zr, 0.05 to 0.30% Mn, 0.05 to 0.30% of Cr, 0.05 to 0.30% of Cu, aluminum and unavoidable impurities. 
Showa Aluminum Kabushiki Kaisha
C B
C22C B23K
inventional inventional
Ichiro Shigekazu Tatsuo
Iwai Nagai Otsuka