Blockade® Flux-Coated

Blockade® flux-coated 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
• Significant cost reductions are realized as it does not contain silver
• 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 brazing copper or brass. Its lower brazing temperature makes it an excellent replacement for many silver-bearing BCuP alloys.

Typical Applications

• Joining copper-to-copper
• Joining copper-to-brass
• Braising brass