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Carbide Brazing Flux
Superior Flux offers specially formulated High-Temp brazing flux pastes for the special requirements for carbide brazing of saw-blades, mining tools, snowplow and other applications.
Superior No. 601B/3411 can be purchased through McMaster-Carr (www.mcmaster.com). See below for McMaster-Carr part numbers. We also welcome direct sales.
| Superior Flux Number |
Description | Base Metals | Filler Metals | Rec. Temp Ranges | Specs. | MSDS | Spec. Sheet |
| No. 601B/3411 | Conventional black brazing flux paste; boron-modified. | Carbide, stainless steel, ferrous and other alloys | BAg, BCuP | 565-980°C 1050-1800°F |
AMS 3411; AWS A5.31-19, Type FB3C; O-F 499, Type B |
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| No. 609LB | Boron Modified, High-Temp Brazing Paste Flux – for Larger Components | Carbide, stainless steel, ferrous and other alloys | Manganese-containing, low-fuming bronze (CDA 681), nickel-silver (CDA 773) | 760-1205°C 1400-2200°F | AMS 3417; AWS A5.31-92, Type FB3D |
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| No. 612 | High-Temp Brazing paste flux – for Smaller Components. | Carbide, stainless steel, ferrous and other alloys | Manganese-containing, low-fuming bronze (CDA 681), nickel-silver (CDA 773) | 760-1205°C 1400-2200°F | AMS 3417; AWS A5.31-92, Type FB3D |
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All Superior Carbide Brazing Fluxes are RoHS compliant.
McMaster-Carr Part Numbers for No. 601B/3411
| Packaging Size | Description | McMaster-Carr Part No. |
| 1/2-lb. | Black Flux | 7645A41 |
| 1-lb. | Black Flux | 7645A51 |
Superior No. 601B/3411 is a general-purpose black brazing flux for BAg Alloy applications, particularly BAg-24 filler alloy used for saw-blades, and conforms to AMS 3411 specification.
Superior No. 609LB is a low-boron (LB) modified brazing flux for hi-temp carbide applications. It is used in tandem with Manganese-containing, low fuming bronze and Nickel-Silver. No. 609LB is particularly effective for larger carbide parts as the addition of boron enables the flux to last longer during brazing. This flux conforms to AMS 3417 specification.
Superior No. 612 is formulated as a general purpose carbide brazing flux. It is used in tandem with Manganese-containing, low fuming bronze and Nickel-Silver. No. 612 is typically used for brazing smaller carbide parts, such as mining drill bits and conforms to AMS 3417 specification.
All Superior carbide brazing fluxes ship as non-hazardous.