Aluminum Alloys Suitable for Dip Brazing


MATERIAL HEAT TREATABLE NON-HEAT TREATABLE
Wrought Alloys 6061, 6062, 6063, 6053, 6951, 7072 1100, 3003, 3004, 3005
Clad Brazing Sheet #21, #22, and others #11, #12, and others
Cast Alloys   A712.0, C712.0, D712.0
A356.0, A357.0, A359.0, A443.0

How Brazing Works

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Component parts are cleaned and deoxidized

Parts are assembled and fixtured on the brazing rack
with brazing filler material preplaced in all joints

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Assembled parts are preheated
to near brazing temperature

Preheated parts are dipped into the molten brazing flux, raising the entire assembly to brazing temperature and fluxing all joints, simultaneously. The preplaced filler material liquefies and flows throughout the joints by capillary action.

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As parts cool, the filler material
solidifies forming brazed assemblies

Residual flux is removed from the brazed assembly

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Completed, cleaned, brazed assemblies

Optional Chem Film

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