Phoscopper 0

PC0 is a copper rich, intermediate temperature, brazing filler metal that is moderately free flowing and self-fluxing on copper (only) by virtue of its phosphorus content. It liquates slightly more than a 7% Phosphorus Copper when heated rapidly. Induction Brazing will produce better mechanical properties in general than torch brazing. Best results are obtained with joint clearances of .001-.003”. PC0 liquates (i.e. separates into high and low melting constituents) if heated slowly through its melting range. The self-fluxing property of PC0 is effective on copper only. Copper base alloys, such as brass or bronze, may be brazed with PC0 if the joints are coated with flux (please call for recommended flux type). PC0 should not be used on ferrous metals or nickel base allows, since the phosphorus produces brittle iron or nickel phosphides 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. Joints made with PC0 are entirely satisfactory on copper and copper alloys if good fit-up and adequate shear area are maintained. If poor fit-up prevails, or shear area is marginal, a lower phosphorus content silver-copper-phosphorus filler metal may be preferred, particularly if the joints are to be subjected to impact or vibration in service.