4658 East 355th Street Willoughby, Ohio 44094 Toll-Free (800) 626-9501 or (440) 946-3300 Fax (440) 942-9083


Aluminum Fluxes

The joining of aluminum base metals has been an area of expertise at Fusion since the development of the first open flame brazing paste over two decades ago. Both brazing and soldering fluxes have been developed to join the most popular aluminum base metals.

Corrosive Fluxes:

NDA — Most potent fluxing action (contains halides) in the corrosive group. Affords the longest flux life for extended heating cycles. Flux residues are completely water washable. Pair with 1070, 1040, 1022, and A071 filler metals.

NPA — Similar to NDA with milder, more controlled fluxing, which reduces base metal erosion and etching. Recommended for thin walled parts; water washable. Pair with 1070, 1040, 1022, and A071 filler metals.

NTA — Similar to NDA with controlled fluxing and non-slumping characteristics. Creamy and smooth appearance due to fine mesh filler metals. Recommended for small diameter striping operations; water washable. Pair with 1070, 1040, 1022 and A071 filler metals.

Non-Corrosive Fluxes:

TNC — Chloride-free flux that does not require post cleaning of the joint area. Flux residue has no detrimental effect of the joint service life; not water washable. Pair with 1070, 1040, 1022, and A071 filler metals.

BNC — Similar to TNC with higher temperature fluxing and reduced (visible) post brazing residue; not water washable. Pair with 1070 and 1040 filler metals.

KNC — For use with lower melt point aluminum base metals like 6061 and 6262. Also suitable with 6063 and 3003 base metals; not water washable. Pair with 1040, 1022, and A071 filler metals.

GNC -  Similar to TNC; specially formulated to braze 5000 series aluminum and other magnesium-containing alloys. Also suitable for commonly used alloys; not water washable.  Pair with 1070, 1040, 1022, and A071 filler metals.

Furnace Brazing Fluxes:

JNC — A non-corrosive formulation that contains a fast drying binder, suitable for furnace brazing operations. Pair with 1070, 1040, A070, A071 filler metals.

FAB — Similar to JNC with reduced post-brazing residue. Pair with fine mesh 1070, 1040, 1022, and A071 filler metals.

Non-Corrosive Flux: ASN

ASN — A non-corrosive solder flux recommended for applications such as aluminum heat exchangers, inlet/outlet tube assemblies, condenser "piccolo" joints, and other assemblies consisting of 6061 and 6262 base metals. The flux residue left after soldering is non-corrosive, thus no flux removal is required. Pair with  solder metals 738, A031, A131, 845, and 892

Melting Range for Popular Aluminum Base Metals

 Base Metal

 Melting Range

 1000 Series

 1190-1215°F

643-657°C

 3003

 1190-1210°F

643-654°C

 5005

 1170-1210°F

632-654°C

 6061

 1080-1200°F

582-649°C

 6063

 1140-1210°F

616-654°C

 6262

 1078-1204°F

582-652°C

 7072

 1195-1215°F

646-657°C

 

Back to Filler Metals/Fluxes

 

 

[ About Fusion || Filler Metals/Fluxes || Applicator Equipment || Automatic Machines ]
[Cleaning Tips || Dispensable Fluxes || Contact Us ]
[ brazing || soldering || filler metal || brazing paste || solder paste || fluxes || pallet conveyor ]
[ silver brazing || brazing system || automatic brazing machine || automation equipment || pick and place ]