Flux Selection Chart

Aufhauser Brazing and Soldering Fluxes are top-rate industrial flow and cleaning agents ideally suited for use with Aufhauser Brazing or Welding alloys in your project.

Use this chart to select the appropriate flux to complement your welding, brazing, or soldering application.

 

 

Flux for General Welding / Brazing

Flux Name Base Metal Recommended Filler Metal Form Applications / Description Active Temp. Specification
Flux10 Aluminum and Aluminum-Based Alloys Most Aluminum Brazing Alloys Paste,
Powder
Automotive, Air-Conditioning 1080-1140°F N/A
Flux11 Cast and Malleable Iron Low-Fuming Bronze Powder Maintenance, Marine Engines 1500-2000°F Mil-F-16136B
Flux14 Aluminum Sheets and Aluminum Based Alloy Sheets Most Aluminum Based Alloy Sheets, and Strips Powder Aluminum Sheets, Air-Craft, Air Conditioning, Home Building 1080-1350°F AMS 3414
Mil-F-6939b
Flux17 Stainless Steels, High Chrome Alloy and Carbides Nickel Silver, Brass and Bronze, Low Silver Alloys Powder Carbide Tools, Restaurant Appliance Mining Tools 1400-2200°F AWS Type 3D
Flux52 Zinc Die Cast Zinc Die Casting, POT Metal and Dow Metal Salt Powder Zinc Die Casting, DOW Metals 600-1000°F N/A
Flux600 Bronze, Copper Brass, and Steel Low-Fuming Bronze and Nickel Silver Paste,
Powder
Farm Machinery 1400-2200°F AMS 3417
AWS Type FB3J
Flux800 Cast Iron Cast Iron Powder All Cast-to-Cast Iron Joining 950-1300°F N/A
Flux900 Magnesium and Magnesium Alloys Equivalent Magnesium Filler Metals Paste,
Powder
Fabrication of Magnesium Alloys 950-1300°F Mil-F-6943a
Stainless Steel Flux Gas Welding of Stainless Steel and High Chromium Ferrous Alloys Equivalent Stainless Steel or High Chrome Alloys Powder Industrial Equipment and Maintenance 1500-2900°F Mil-F-7516b
Classes 1 & 2
Back-Side Stainflux Series 300 and 400 Stainless Steel Equivalent Stainless Steel or High Chrome Alloys Powder TIG & MIG Welding of Stainless Steel 2000-2900°F Mil-F-7516b
Classes 2 & 4

 

Flux for Silver Brazing / Soldering

Flux Name Base Metal Recommended Filler Metal Form Applications / Description Active Temp. Specification

White SilverFlux

(UltraFlux)

Ferrous and Non Ferrous, Stainless Steels, Carbides and High Chrome Alloys All Silver Alloys AWS Classes BAg and BCuP Paste,
Powder
Air-Conditioning, Appliance, Plumbing, Carbide Tools 1100-1600°F AMS 3410
AWS FB3A
O-F-499D Type B

Black SilverFlux

(UltraFlux Black)

Ferrous and Non Ferrous Alloys with Large Amount of Refractory Oxides All Silver Alloys AWS Classes BAg and BCuP Paste,
Powder
Carbide Tools, Mining Tools 1050-1800°F AMS 3411
AWS FB3C
O-F-499D Type B
Flux505 Ferrous and Non Ferrous Suitable for Soft Soldering Soft Solders, All Commercial Grades Tin/Lead, Tin/Silver, Tin/Antimony Paste,
Powder
Plumbing, Air-Conditioning 300-500°F Fed O-F 506c
Type 1, Form B
SolderFlux (Liquid) Ferrous Alloys and Stainless Steel Tin/Lead, Tin/Silver, Tin/Antimony Solder Liquid Recommended for Soldering of Most Metals Except: Aluminum, Magnesium and Titanium 200-600°F Fed O-F-506c
Type 1, Form B

 

Liquid Flux for Production Welding / Brazing

Flux Name Base Metal Recommended Filler Metal Form Applications / Description Active Temp. Specification
SpeedFlux
Type LPG
Steel, Copper, Bronze, Most Ferrous and Non-Ferrous Steel, Bronze Rods, Nickel-Silver Rods, and Silver Solder Liquid Use with All Liquefied Petroleum Gas Systems for Production 1400-2000°F N/A
SpeedFlux
Type B-2
Steel, Copper, Bronze, Most Ferrous and Non-Ferrous Steel, Bronze Rods, Nickel-Silver Rods, and Silver Solder Liquid Use with Oxyacetylene Torch for High Speed Production of All Surface Brazing, Tubular Steel Furniture and much more 1400-2000°F N/A

 

 

Active Temperature Range