What is the recommended method for making copper to copper joins?

The recommended method for making copper to copper joins is using copper phosphorus brazing filler metal without flux. This technique is ideal because copper phosphorus filler metals are specifically designed to bond well with copper and create strong, durable joints. One of the key advantages of this method is that the phosphorus in the filler metal acts as a fluxing agent, which helps to clean the surfaces during the brazing process. This eliminates the need for an external flux, simplifying the process and reducing the risk of contamination or inclusion of foreign materials in the joint.

Choosing this method provides a reliable connection that can withstand thermal and mechanical stress, making it particularly suitable for plumbing and HVAC applications where copper is commonly used. The ability to create strong joints without additional flux ensures that the joint integrity is maintained, and it enhances the overall quality and performance of the connection.