BLOCKADE

Blockade is a proprietary phosphorus-tin-silicon alloy engineered as an inexpensive alternative to copper-copper and copper-brass alloys. It is self-fluxing on copper and its lower melting temperature makes it an excellent choice for brass connections. Blockade flows rapidly but can be used to “cap” brazed joints

Features

  • A low cost alternative to silver bearing filler metals
  • It has a narrow melting range, but its flow characteristics allow operators to “cap”, or build up, around the finished joint
  • Low melting point reduces the likelihood of overheating the brass
  • Often selected to replace high silver brazing filler metals for these applications
  • Does not contain silver, so significant cost reductions are available
  • Not recommended for brazing steel or other ferrous alloys
  • Phosphorus content will form low ductility intermetallic with base metal
  • Phosphorus containing brazing alloys should not be used if the braze is exposed to sulfur or sulfur compounds in service
  • For copper or brass. Lower brazing temperature, excellent replacement for many silver bearing BCUP alloys
  • Conforms to the EU Reach & RoHS directive

 

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