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A. E. WILLIAMS addition alkali alloy containing aluminium brazing aluminium-silicon applied B.Sc basis metal bath beryllium boric acid brasses braz brazed joints brazing alloy brazing material brazing operation brazing temperature brittle cadmium capillary action carbon components composition constituent cooling copper alloys copper-silver alloys copper-zinc alloys corrosion dip brazing ductility electric resistance electrodes ENGINEERING equilibrium diagram essential eutectic factor filler metal flame flow fluoride furnace brazing fused borax gas porosity Grade heating hydrogen INDUSTRY joined light metals magnesium Materials and Methods MECHANICAL WORLD melting point melting range melting-point metal surfaces mixtures molten brazing metal molten flux molten metal necessary nickel nitric acid normal oxide parent metal Percent phosphorus pickle possible precious metals preferably silicon silver solders soft soldering solid Spelter stainless steels steel assemblies strength suitable surface tension tensile strength tion to-day tons per sq torch brazing usually wire zinc chloride