Silverphos 6HP

SP6HP is a copper rich, intermediate temperature filler metal that is self-fluxing on copper by virtue of its phosphorus content. SP6HP has good flow and wetting properties on copper, brass, and bronze and is extremely fluid when heated rapidly to its flow point. The self-fluxing property of SP6HP is effective on copper only. Copper base alloys, such as brass or bronze, may be brazed with SP6HP but cannot be used on ferrous metals or nickel base alloys, since the phosphorus produces brittle iron or nickel phosphorus at the joint interface.

The properties of a brazed joint are dependent upon numerous factors including base metal properties, joint design, metallurgical interaction between the base metal and the filler metal. When brazing copper alloys the properties of joints with good fit-up should exhibit adequate performance. If poor fit-up prevails, or shear area is marginal, a lower phosphorus content silver-copper-phosphorus alloy such as Silverphos 5 may be preferred, particularly if the joints are to be subjected to impact or vibration in service.