Aluminum Brazing Powder

Aluminum based brazing materials are mainly used for brazing aluminum and aluminum alloys; On the basis of AlSi eutectic and AlSiCu eutectic, the binary or multicomponent alloy solder is composed of Cu, Zn, Mn, Mg and other alloying elements; It is suitable for brazing in flame, furnace and vacuum; In addition to vacuum brazing, all aluminum brazing should be carried out with appropriate aluminum flux, and the flux residue at the joint must be thoroughly cleaned after welding. GB/ISO Chemical Composition（wt%） Solid liquid phase (℃) BAl92Si/Al 107 Si6.8-8.2/Fe≤0.8/Cu≤0.25/Mn≤0.10/Zn≤0.20/Al Bal. 575-615 BAl90Si/Al 110 Si9-11/Fe≤0.8/Cu≤0.30/Mn≤0.05/Mg≤0.05/Zn≤0.10/Al Bal. 575-590 BAl88Si/Al 112 Si11-13/Fe≤0.8/Cu≤0.30/Mn≤0.05/Mg≤0.10/Zn≤0.20/Al Bal. 575-585 BAl86SiCu/Al 210 Si9.3-10.7/Fe≤0.8/Cu3.3-4.7/Mn≤0.15/Mg≤0.10/Zn≤0.20/Al Bal. 520-585