15% Silver, 5% Phosphorus, balance Copper

Best alloy at filling gaps when close fit-ups cannot be made

Highest joint ductility and strength in HVAC-R applications

Phosphorus acts as a fluxing agent when joining copper to copper, when joining brass use LENOX Brazing Flux (WS78172)

Temperature: Melt 1190° F, Flow 1475° F

Meets AWS BCup-5