Washington Alloy Co. USA 72 CF

Specifications AWSA5.8 BAg-8 Sizes and Packaging 1/32”, 3/64”, 1/16”, 3/32” and 1/8” bare wire diameters 18”, 20” or 36” straightened and cut lengths 50 troy ounce coils (1, 3 and 5 troy ounce coils also available) Flux-coated rods available in 1/16” and 3/32” Description HIGH SILVER BRAZING ALLOYS Washington Alloy offers approximately 14 different high silver brazing alloys for joining most ferrous and nonferrous metals, except aluminum and magnesium. These High Silver Brazing Alloys are manufactured from only the highest purity raw materials, thereby eliminating undesirable trace elements which might otherwise interfere with brazing operations. All Washington Alloy High Silver Brazing Alloys are carefully formulated to provide maximum strength and corrosion resistance when joining stainless steel, copper alloys, nickel alloys, precious metals and just about any combination of these metals. CADMIUM VS. CADMIUM-FREE Washington Alloy offers both cadmium-free as well as cadmium-bearing alloys. The presence of cadmium gives the alloy a lower melting range and excellent fluidity. These alloys are mostly used in electrical components, petrochemical applications, brazing and joining of mild steel, tool steel, tungsten carbide tool tips and copper or nickel alloys. Although the cadmium-bearing alloys provide some advantages, they are potentially dangerous due to the toxicity of the fumes and are considered carcinogenic. For this reason Washington Alloy offers several cadmium-free alloys such as USA 35CF, USA 45CF, USA 56CF and USA 54CF. The cadmium-free alloys are primarily used in the fabrication of dairy or food handling equipment where the use of cadmium-bearing filler metals is prohibited. BARE OR FLUXCOATED In any brazing application, capillary action is of primary importance. To promote capillary action the joint surfaces must be cleaned of contaminants. In most cases this is done by dipping the filler metal into a jar of paste flux before applying to the joint and heat source. In many cases the use of paste flux can be avoided by using one of Washington Alloy flux-coated silver brazing rods such as USA 35% flux-coated, USA 45% or USA 45CF flux-coated and USA 56CF flux-coated. The extruded coating on these filler metals promotes “wetting-in” and capillary flow. The coating is flexible, low-fuming and has good shelf life.