At what temperature, above a certain threshold, is a brazed joint formed?

A brazed joint is formed when the filler metal is heated to a temperature that exceeds the melting point of the filler but remains below the melting point of the base metals being joined. The temperature for brazing is typically above 800 degrees F (427 degrees C). This means that a choice of 1000 degrees F is suitable for brazing because it exceeds this minimum temperature, ensuring that the filler metal will adequately flow and fill the joint, establishing a strong bond.

At 1000 degrees F, the necessary heat allows the brazing alloy to become liquid enough to flow into the joint, creating a reliable connection without melting the base metals. This temperature is commonly used in various brazing applications, making it a knowledgeable choice for those familiar with the brazing process in HVAC work.