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Aluminum Brazing Filler Metals

Aluminum brazing alloys are used to join brazeable aluminum base metals. Silicon and copper are typically added to pure aluminum to lower melting range and provide a suitable joining material. Magnesium can also be added to aluminum to assist in the facilitation of oxide dispersion in vacuum brazing. In most aluminum brazing cases, a flux is required to remove and prevent surface oxides in addition to wetting the base metal. Aluminum alloys are widely used in the HVAC, automotive, and refrigeration industries.

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