Induction Brazing Steel to Tungsten Carbide

In this application test, we braze steel to tungsten carbide in 5 seconds using flux and braze alloy.

Ultraheat SBT Series 3kW, 1MHz

• Steel tool tail and tungsten carbide receiver
• Silver soldering paste (PN:R0113)
• Flux

Key Parameters
Temperature: Approximately 1440°F (780°C)


  1. The first step in this brazing steel to tungsten carbide application is position the steel tool tail into the carbide workpiece hole.
  2. Brazing paste was then applied around the tool tail close to carbide piece.
  3. Additional flux was applied over the brazing paste.
  4. The assembly was positioned in the induction coil.
  5. Power to the induction system was turned on. The brazing joint was completed in 5 seconds, which was customer’s targeted process time.
  6. The material was cooled in water following the completion of the braze.
  7. The joint was then cross-sectioned to validate that the brazing process had produced a strong, high quality joint.


Induction heating provides:

  • Strong durable joints
  • Selective and precise heat zone, resulting in less part distortion and joint stress than welding
  • Less oxidation
  • Faster heating cycles
  • More consistent results and suitability for large volume production, without the need for batch processing
  • Safer than flame brazing


Request information or contact us about this application.