Superior No. 20 is a general purpose, water-soluble brazing flux for aluminum applications using the BAlSi filler alloys. Superior No. 1250 is an aluminum brazing flux designed for controlled atmospheric brazing.
|Description||Base Metals||Filler Metals||Temp Ranges||Specs.||SDS||Spec. Sheet|
|No. 20||Aluminum brazing flux powder||Aluminum, aluminum-based||4047/718; 4145/716||345-690°C
|No. 1250||Controlled Atmosphere Aluminum Brazing Flux||Aluminum, aluminum-based||Silicon-aluminum coated aluminum||580 – 610°C 1076 – 1130°F|
Superior No. 20 Aluminum Brazing Flux is formulated for aluminum and aluminum-based alloys:
Superior No. 1250 Aluminum Brazing Flux is formulated as a brazing compound for controlled atmospheric brazing. The brazing flux meets the rigid requirements of successful atmospheric brazing of aluminum, most commonly used in heat exchangers. Superior No. 1250, in its molten stage, does an excellent job of removing oxide layers from aluminum surfaces, facilitating a strong braze joint. The typical filler alloy used with No. 1250 is a fusible alloy of aluminum and silicon.