What is the maximum operating temperature for conventional brazed joints?

The maximum operating temperature for conventional brazed joints is typically around 250ºF. This temperature threshold is primarily due to the materials used in the brazing process, which generally include copper and its alloys, as well as other filler metals that are designed to create strong, durable joints.

At temperatures exceeding this range, the properties of the brazed joint can begin to degrade. The joint's strength might decline, which could ultimately lead to failure under stress or operating conditions that require robust performance. Additionally, exceeding the specified operating temperature can also lead to issues such as changes in the microstructure of the materials involved, which can further compromise the integrity of the joint.

In the context of piping and plumbing systems, the importance of maintaining the integrity of brazed joints is critical to ensure safety and reliability. By adhering to the maximum temperature recommendations, pipefitters can ensure that the joints maintain their strength and functionality over time.