Copper- Aluminum Brazing Flux (Non-corrosive Flux for Dissimilar Metals Joint)Products UsageUse with zinc base soldering filler metal, use for soldering some same metal of dissimilar metal, as copper, iron, aluminum, stainless steel, etc. Use for various dissimilar metal joint, such as parts of refrigerator, wiring, decoration, cooling system, automobile, heating exchange, an so on.Current Standard: GB/T15829.4-1995 <Soldering Fluxes, inorganic Fluxes>SpecificationWelding temperature CharacterApplication AreaFB501S-1577-600 DegreesC1070 - 111DegreesF Aluminum- aluminum alloyRadiator, tubes for refrigerators, Refrigerators fittings, car fittings, Fabricated tube & assemblies, electrical equipment and automobile parts, etc.FB501S-2550-580 Degrees C1022 - 1076 Degrees FFB502S-1420-480 Degrees C788 - 896 Degrees FAluminum- aluminum alloy, and aluminum-copperFB502S-2450-500 Degrees C842 - 932 Degrees F