Harris Products Group, 15520S, Brazing Alloy, Phos-Copper, Melting Range, Self-Fluxing, For HVAC; 0.003 in - 0.006 in Joint Clearance

Stay-Silv® 15 phos-copper filler metal is the industry standard for air conditioning/refrigeration applications. Its melting range is useful in filling wider clearances while providing good service ductility. Complies with the EU Reach & RoHS directive.

Features

• Popular brazing filler metal for HVAC and refrigeration connections
• Flows into tight connections when heated above its liquidus temperature
• Recommended joint clearance of 0.003 in. - 0.006 in. (0.08 mm - 0.15 mm)
• Suitable for brazing low nickel (10% maximum) copper/nickel base metals
• Not recommended for brazing steel or other ferrous metals due to sufficient lack of joint ductility
• Corrosion resistance is generally similar to the copper base metal, but phosphorus containing alloys, including Stay-Silv® 15, should not be used if the braze is exposed to sulfur or sulfur compounds in service
• Flux not required for copper brazing as it is self-fluxing. For brazing brass or copper-to-brass Stay-Silv® white flux is suitable for most applications. Harris eco SMART® boric acid free flux, powder or paste, is an excellent choice to promote sound brazed assemblies
• Complies with the EU Reach & RoHS directive
• Popular choice for copper brazing air conditioning and refrigeration connections
• Wide melting range allows operators to fill loose connections and "cap" or "build-up" around the finished joint. When heated above its liquidus it will penetrate tight connections.

• Weight: 1.03 lbs
• Phosphorus Content: 4.8-5.2%
• Copper Content: Remainder
• Silver Content: 14.5-15.5%
• Other Elements: 0.15%
• Solidus Temperature: 1190 F (643 C)
• Liquidus Temperature: 1475 F (802 C)
• Brazing Range: 1300 F-1500 F (704 C-816 C)
• Electrical Conductivity: 9.9 %IACS
• Electrical Resistivity: 17.4 cm
• Recommended Joint Clearance: 0.003-0.006 in (0.08-0.15 mm)
• Suitable Metals: Copper, Low Nickel (10% max) Copper/Nickel Metals
• Not Recommended For: Steel or other ferrous metals
• Corrosion Resistance: Similar to copper base metal; avoid sulfur exposure
• Flux Requirement: Self-fluxing for copper; use Stay-Silv white flux for brass or brazing copper to brass
• Compliance: EU Reach & RoHS Compliant

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