Best alloy for general copper-copper brazing in the Sil-Fos family. For copper-to-copper joints the phosphorus in the Sil-Fos product serves as the fluxing agent and no separate flux is necessary. For brass applications however, flux is recommended. For use where close fit-ups cannot be maintained Sil-Fos 15 works well to bridge gaps. Highest joint ductility of the entire Sil-Fos family to best withstand the stresses inherent in refrigeration applications. Slow flow.
Lucas
Milhaupt Sil-Fos 15 Silvaloy 15 Brazing Rod, 0.025 in Dia, 20 in Length, 1 lb, Plastic Tube, Chemical Composition: Silver, Copper, Phosphorus, 1300 to 1500 deg F Brazing, Gray
An economical, very fluid medium temperature filler metal for use with copper, brass and bronze
Withstands moderate vibration
Melting point: 1190 deg F
Flow point: 1475 deg F28 rods
Composition: 15% silver, 80% copper, 5% phosphorus
Dimensions: 0.125 in x 0.05 in