Blockade®

Blockade is a unique Harris braze alloy designed for low temperature joining of copper and brass. It has a narrow melting range, but its flow characteristics allow operators to “cap”, or build up, around the finished joint.

Blockade is an excellent choice for brass brazing. Its low melting point reduces the likelihood of overheating the brass. It is often selected to replace high silver brazing filler metals for these applications. Blockade does not contain silver so significant cost reductions are available.

Blockade is not recommended for brazing steel or other ferrous alloys. The phosphorus content will form a low ductility intermetallic with the base metal. Phosphorus containing brazing alloys should not be used if the braze is exposed to sulfur or sulfur compounds in service.