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 Ag Cu P Sn
2005 CuP 178   BCuP-1 - 94 5 710-925
2006 CuP 179 CP 203 - L-CuP6 93.8 6.2 710-890
2007 CuP 180 CP 202 BCuP-2 L-CuP7 93 7 710-820
2008 CuP 182 CP 201 - L-CuP8 92 8 710-770
2077 CuP 386 CP 302 - - 86.2 6,8 7 650-700
2076 - - - - 89.6 6.2 4.2 650-700
3002 CuP 279 CP 105 - L-Ag2P 2 91.5 6.5 645-825
3002 LP - - - - 2 93.5 4.5 650-850
3022 CuP 280 - BCuP-6 - 2 91 7 645-790
3005 CuP 281 CP 104 BCuP-3 L-Ag5P 5 89 6 645-815
3055 CuP 282 - BCuP-7 - 5 88 7 645-770
3015 CuP 284 CP 102 BCuP-5 L-Ag15P 15 80 5 645-800
3018 CuP 286 CP 101 - - 18 75 7 645
3666 - - - - 6 81 6.5 6.5 600-640