Description: Superior No. 609B/3417FP is a Boron-modified powder flux that is active and protective up to 2200°F/ 1205°C. It is suitable for brazing of ferrous metals and alloys, high-Chromium alloys and Tungsten Carbide compositions. Superior No. 609B/3417FP works well with low-Silver content brazing alloy, Nickel-Silver (CDA 773) and low-fuming Bronze (CDA 681) filler metals. Applications: Superior No. 609B/3417FP is used for the brazing of carbide tools, large steel parts or when heating cycles are required. The flux is designed for furnace brazing operations and where moisture levels must be minimized. Information provided by Superior Flux |