At what temperature is a joint considered to be "brazed"?

A joint is considered to be "brazed" when it is heated to a temperature that allows filler metal to flow into the joint by capillary action, forming a strong bond between the base materials. The brazing process typically occurs at temperatures above 800 degrees Fahrenheit, but it is most commonly associated with temperatures around 1000 degrees Fahrenheit or higher.

At this temperature, various alloys can be used as filler material to create durable joints in metals such as steel, copper, and aluminum. The chosen temperature is crucial in ensuring that the base materials do not melt while achieving sufficient fluidity of the filler metal to penetrate and bond effectively.

To summarize, the threshold for defining a joint as brazed is related directly to the melting point of the filler metal and the temperature required to achieve that flow, with 1000 degrees Fahrenheit being a standard benchmark in the industry.