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SIL-FOS 15

Product Overview

Sil-Fos 15 is the preferred alloy for general copper-copper brazing; the phosphorous in the Sil-Fos family serves as a fluxing agent on copper, so no flux is recommended. Sil-Fos 15 can be used with joints where fit up is marginal and is well suited for use in refrigeration applications.
  • Joins CU to CU (phosphorus serves as flux)
  • Joins CU to Brass (flux is recommended)
  • Highest joint ductility of entire Sil-Fos family
  • Allows for fillet build up
  • Slow flow but penetrates well into long shear depths
  • Made in USA

Typical Industry Applications:

HVAC brazing

HVAC/R refrigerant systems, air conditioning coils, evaporator coils.

 

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Product Details

Name:SIL-FOS 15

Nominal Composition:Silver 15.00, Copper 80.00, Phosphorous 5.00

Liquidus:1300 °F °, 704 °C

Solidus:1190 °F °, 643 °C

Max Recommended Brazing Temperature:1500 °F, 816 °C

Heating Methods:Controlled Atmosphere, Open Air

Industry Specifications:

  • AWS: BCuP-5
  • Federal QQ-B-654: BCuP-5
  • ISO 17672: CuP 284

Distribution Offerings

Custom solutions available upon request.

Product NameDimensionsCase QuantityOEM FormsOEM Range
32181.050 x .125 x 5ft length coil6/box
32183.050 x .125 x 22ft length coil5/boxWireDiameter X Length
95150.125 x .050 x 20: 28 rods25 lbsStripthick x width
1202082.125 sq x 3625 lbsShimThick x Width x Length
95158.094 dia x 3625 lbsSlugDiameter x Length
95161.125 x .050 x 20: bulk25 lbs.WireDiameter
1202092.125" sq. x 20: 11 rods in plastic tube25/boxRingsID
95177.125 x .050 x 20: 7 rods20/boxWashersID x OD

Common Industries

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HVACR

Lucas Milhaupt offers the best brazing alloys, soldering products, and HVAC/R brazing equipment on the market. Learn how we help HVAC OEMs & Service Technicians improve their brazing process.