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Johnson Matthey Silver-flo 55

Silver-flo™ 55 is a cadmium free silver brazing filler metal.  It combines a low brazing temperature with a short melting range. Silver-flo™ 55 is very free flowing and produces neat joints with small fillets. These characteristics make Silver-flo™ 55 an excellent general-purpose silver brazing filler metal. In many countries it is accepted as the best cadmium-free alternative to the low-melting cadmium containing filler metals. For example, it is used as a substitute for alloys such as Easy-flo™ and Easy-flo™ No.2. 

Joints made with Silver-flo™ 55 are suitable for seawater applications, being resistant to dezincification. The optimum joint gap for this filler metal at brazing temperature is normally 0.05-0.15mm.

Key Products Features & Benefits: 

  • 55% Silver (Ag) - 21% Copper (Cu) - 22% Zinc (Zn) - 2% Tin (SN)
  • Melt Range - 630-660 ºC
  • Classified as AG103 to EN1044 1999 Specification.
  • Classified as AG155 to ISO17672 2010 Specification
  • Commonly available as a 1.5.0mm Dia. rod as 
  • Standard 600mm long
  • Generally sold per KG (other options may be available on request)


Data Sheets and Info

Technical Bulletin

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