FORTEBRAZE Cooper-Phos Brazing Alloys

Copper-Phosphorus Brazing Rods

Copper-Phosphorus alloys have outstanding brazing properties and wide capabilities. Phosphorus will alloy readily with copper. Phosphorus is a reducing agent for copper and also deoxidizes silver. These brazing alloys of copper-phosphorus and silver-copper-phosphorus are self-fluxing on pure copper.

The reduction of phosphorus and additions of silver have a profound effect upon the fluidity of brazing alloys. The alloys of higher phosphorus content are extremely fluid, while the lower phosphorus, high silver alloy has a broad plastic range. Even small adjustments in alloy percentages have a marked effect on brazing alloy fluidity.

Product Code Standards Composition % Melting Range ºC
ISO 17672 EN 1044 AWS 5.8 DIN 8513 Al Si Zn
1001 CuP 178   BCuP-1 - 88 12 710-925
1005 CuP 179 CP 203 - L-CuP6 90 10 710-890
10002 CuP 279 CP 105 - L-Ag2P 2 98 645-825
10004 - - - - 4 96 650-850