Which type of solder is typically used for pot joints in copper?

The choice of solder for pot joints in copper is typically based on its melting point, flow characteristics, and compatibility with copper. The 52/48 lead-tin solder is particularly well-suited for this application due to its good wettability and ability to create strong, durable joints. This solder composition has a relatively low melting temperature, which reduces the risk of thermal damage to copper components during the soldering process.

The lead content in the 52/48 solder provides excellent mechanical properties and helps in forming robust joints that can withstand thermal cycling and mechanical stress. Due to its balanced ratio, it melts uniformly, allowing for easier application and more reliable connections in pot joints, which require a strong bond to prevent leaks.

Using this type of solder ensures that the pot joints can withstand operational pressures and temperatures without failing, ensuring longevity and reliability in copper applications.