Brazing rods (P:7%, Cu:Bal.), Phos-Copper/Phos-Copper-Silver, Silver-Copper-Zinc, Silver-Copper-Zinc-Tin Silver-Copper-Zinc Brazing rods (P:7%, Cu:Bal.) 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 ...