McMaster-Carr logo
    Filter by
    Form
    Container Type
    Container Net Weight
    Cleanup Method
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    13 Products

    Brazing Flux

    Image of Product. Front orientation. Brazing Flux. Brazing Flux.
    Image of Product. Front orientation. Brazing Flux. Brazing Flux.
    Use this flux with silver and copper-based brazing alloys to clean and prepare surfaces. Residue washes off with hot water. Do not use it with titanium.
    Container
    Max. Temp.,
    ° F
    Net
    Wt.
    Type
    Color
    Form
    Cleanup
    Method
    Specs. Met
    Each
    For Joining Brass, Bronze, Copper, Stainless Steel, Steel
    1,6006 oz.Applicator-Top CanWhitePasteWaterAWS A5.31 Type FB3A, Fed. Spec. O-F-499 Type B, SAE AMS34100000000000000
    1,6008 oz.JarWhitePasteWaterAWS A5.31 Type FB3A, Fed. Spec. O-F-499 Type B, SAE AMS34100000000000
    1,6001 lb.JarWhitePasteWaterAWS A5.31 Type FB3A, Fed. Spec. O-F-499 Type B, SAE AMS341000000000000
     

    Brazing Flux for Nickel and Carbide

    Image of Product. Front orientation. Brazing Flux. Brazing Flux for Nickel and Carbide.
    Image of Product. Front orientation. Brazing Flux. Brazing Flux for Nickel and Carbide.
    Use this flux with silver and copper-based brazing alloys to clean and prepare surfaces. It is boron modified and residue washes off with hot water. Do not use it with titanium.
    2,200° F Maximum Temperature—Flux with a 2200° F max. temperature lasts longer during brazing thanks to its low boron content, so it’s great for use on large carbide parts. It works particularly well with RBCuZn brazing alloys.
    Container
    Max. Temp.,
    ° F
    Net
    Wt.
    Type
    Color
    Form
    Cleanup
    Method
    Specs. Met
    Each
    For Joining Nickel, Carbide
    1,7006 oz.Applicator-Top CanBlackPasteWaterAWS A5.31 Type FB3C, Fed. Spec. O-F-499 Type B, SAE AMS34110000000000000
    1,7008 oz.JarBlackPasteWaterAWS A5.31 Type FB3C, Fed. Spec. O-F-499 Type B, SAE AMS3411000000000000
    1,7001 lb.JarBlackPasteWaterAWS A5.31 Type FB3C, Fed. Spec. O-F-499 Type B, SAE AMS3411000000000000
    2,2008 oz.JarBrownPasteWaterAWS A5.31 Type FB3D, SAE AMS3417000000000000
    2,2001 lb.JarBrownPasteWaterAWS A5.31 Type FB3D, SAE AMS3417000000000000
     

    Fluoride-Free Brazing Flux

    Image of Product. Front orientation. Brazing Flux. Fluoride-Free Brazing Flux.
    Since this flux doesn’t contain any fluoride, it’s environmentally friendly and safe if it gets on your hands. Use it with silver- and copper-based brazing alloys to clean and prepare surfaces.
    Container
    Max. Temp.,
    ° F
    Net
    Wt.
    Type
    Color
    Form
    Cleanup
    Method
    Each
    For Joining Brass, Copper, Silver
    1,6008 oz.JarWhitePasteWater0000000000000
    1,6001 lb.JarWhitePasteWater000000000000
     

    No-Clean Brazing Flux for Joining Aluminum to Copper

    Image of Product. Front orientation. Brazing Flux. No-Clean Brazing Flux for Joining Aluminum to Copper.
    Clean and prepare surfaces before joining aluminum to copper. With minimal residue, this flux does not require cleanup.
    Container
    Max. Temp.,
    ° F
    Net
    Wt.
    Type
    Color
    Form
    Cleanup
    Method
    Each
    For Joining Aluminum, Copper
    9854 oz.JarGrayPasteNo Clean0000000000000
    9858 oz.JarGrayPasteNo Clean000000000000
    9851 lb.JarGrayPasteNo Clean0000000000000
     
    back to top