Harris Stay-Silv 15 Phos-Copper Silver Brazing Alloy 1520FMPOP

Harris Stay-Silv 15 Phos-Copper Silver Brazing Alloy

• A frequent choice for brazing copper, as copper is self-fluxing
• Excellent for situations where close fit-up does not exist, and where thermal expansion and service vibration are involved
• Popular brazing filler metal for HVAC and refrigeration connections
• Can be used to braze brass with the use of appropriate brazing flux
• Suitable for brazing low nickel, (10% maximum), copper/nickel base metals
• Can be used for brazing copper-to-copper and copper-to-brass (using Stay-Silv” white brazing flux) applications
• Not recommended for brazing steel or other ferrous metals due to sufficient lack of joint ductility
• Conforms to the EU Reach & RoHS directive

These brazing filler metals are primarily used to join copper to copper, copper to brass, and brass to brass. The phosphorus content serves as a “self-fluxing” agent in joining copper to copper. When brazing brass to copper or brass to brass, use Stay-Silv White Brazing Flux. The phos/copper and silver/phos/copper filler metals are not recommended for brazing steel or nickel alloys. The amount of phosphorus in the phos/copper filler metals is critical in determining precise melting range and performance. Proprietary computer based technology is used to accurately control the phosphorus content to exacting standards. Each heat of metal is precisely checked before pouring to assure users a phosphorus content to within + or – 1/10 of a percent. Even more significant, a liquidus variation of no more than + or – 6 degrees F. The advantages of this precise control is apparent in automated brazing operations, where even modest variations in flow temperatures can significantly increase the incidence of rejects. Equally important, manual operators no longer need to make adjustments in heating practice from one batch of filler metal to the next to achieve uniform results. STAY-SILV 15 For many years the standard of the industry, the 15 silver alloy has proven its value. This filler metal is excellent for situations in which close fit-up does not exist, and where agitation and vibration in service are involved.