Tenacity™ No.6 Flux Paste is a flux that is suitable for use with silver brazing filler metals. It is especially designed for use on heat resistant stainless steels, tungsten carbide and the refractory metals. It has a working range of 550-800°C and is suitable for use with silver brazing filler metals melting below 750°C (such as several of the Silverflo™, Easy-flo™ and Argo-braze™ range of filler metals). This flux contains elemental boron making it dark brown in color. It is therefore not always easy to observe the flow of the molten brazing alloy. It is often recommended for use on tungsten carbide components where it helps to provide improved wetting of the brazing alloy. Tenacity™ No.6 Flux Paste should not be used on low nickel or nickel-free stainless steels if interfacial corrosion is likely to be a hazard in service. Information provided by Johnson Matthey Metal Joining |