The difference between TIG brazing and TIG welding is brazing occurs above 840f but below the melting point of the base metal being joined. Silicon bronze filler metal melts around 1800-1900f and carbon steel melts around 2800f. Silicon bronze is a useful rod to have in your tig arsenal because its a good rod for joining dissimilar metals. cast iron, steel, copper, bronze, and brass can all be joint to each other using silicon bronze rod also know as Everdur. | Welding Tips & Tricks