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CDA 681

Product Overview

CDA 681 is an economical bronze braze alloy used on both ferrous and non-ferrous metals where where close fit-up cannot be maintained. It is often used for HVAC components though in applications where zinc is objectionable, CDA 521 should be considered. Due to its higher temperature, CDA 681 is prone to longer cycle times compared to standard silver braze alloys.
  • Economical
  • Can bridge gaps

    • Typical Industry Applications:

    Compressors, filter dryers

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    Product Details

    Name:CDA 681

    Nominal Composition:Copper 58.00, Zinc 39.95, Tin 0.95, Iron 0.75, Manganese 0.26, Silicon 0.10

    Liquidus:1630 °F °, 888 °C

    Solidus:1590 °F °, 866 °C

    Max Recommended Brazing Temperature:1750 °F, 954 °C

    Heating Methods:Open Air

    Industry Specifications:

    • AWS: RBCuZn-C
    • ISO 17672: Cu 681

    Product Resources

    CDA 681 SDS CDA 681 SDS CDA 681 TDSCDA 681 TDS

    Common Industries

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    Automotive

    Lucas Milhaupt helps automotive manufacturers prepare for the next wave of automotive technology with innovative brazing alloys and process improvements.