AWS A5.8 BCuP-3

Copper Phosphorus Filler Metals for Brazing, Welding Wire -- BCuP-3


BCuP-3 is used when gap clearance range is .003" to .005"; ideal for larger copper pipe sizes. It has the ability to fill gaps and form fillets without adversely affecting joint strength. We recommend a maximum brazing temperature of 1500°F.

Nominal Chemical Composition (%) Melting Point Flow Point
Ag Cu Zn Cd P Ni Sn Mn °F °C °F °C
5 89 - - 6 - - - 1190 645 1325 720