Tenacity™ No.6 Flux Powder is a specialized boron-modified flux for use on heat resistant stainless steel, tungsten carbide and the refractory metals. It is often recommended for use on tungsten carbide components where it helps to provide improved wetting of the brazing alloy. Being dark brown it is not always easy to observe the flow of the brazing alloy. It has a working range of 550-800°C. Tenacity No.6 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 |