« BACK  

Induction brazing steel to copper

Induction brazing steel to copper
Induction brazing steel to copper

The goal is to braze steel tube to copper tube in 60 seconds using flux and braze alloy.

UltraFlex UPT-W15/150
HS-8 Heat Station
Three turns dual diameter coil


  • Steel tube and copper receiver
  • Braze alloy (CDA 681)
  • B-1 Flux

Key Parameters
Temperature: Approximately 1750°F (954°C)

148 kHz


1. The assembly section was pre-assembled and fluxed (B-1) then located in the two diameter coil with a single pre-formed alloy ring set at the interface area.
2. Alloy flow and joint completed in 60 seconds.
3. The material was cooled in water following the completion of brazing.
4. The joint was then cross-sectioned to validate that the brazing process had produced a strong, high quality joint.


  • 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

PUBLISHED: 28 May 15 Bookmark and Share
Ultraflex Power Technologies
+1 631 467 6814
+1 631 980 4065
Other News from Ultraflex Power Technologies:

Un-brazing and re-brazing copper angle brackets to copper strips at 760°C in less than a minute
Using Induction Heating to simultaneously solder two brass tubes to a brass water jacket assembly within 70 seconds
Brazing corrugated tubing to stainless steel pipe and cap using UltraFlex Induction Heating
Brazing of heat exchanger pipes
Induction braze copper and brass lap joint
Preheat magnetic steel strip with very even heating across the strip
Induction heating system delivered for automotive parts supplier
Soldering copper pins onto a PCB
Induction preheating of brass rods before hot forging
Induction soldering of PCBs with soldering paste
Ultraflexappoints Reynaldo Alves South American Sales Representative
Induction brazing steel to wolfram carbide
Ultraflex provides new resource for learning about Induction Heating
Induction pressure casting no crucible
Scott Taddeo heads up Ultraflex Power's West Coast office
Induction brazing steel to copper
Induction brazing steel to steel
Tom Dickerson joins Ultraflex as Americas Sales Manager

Industry News:
Unison Ltd will be exhibiting its tube & pipe bending machinery on stand 5E10
Unison Ltd is thrilled to invite you to Tube Düsseldorf 2018
Unison, UK
PurgElite® in action in a perspex tube
PurgElite® for zero colour tube and pipe welds
Huntingdon Fusion Techniques Limited, UK
The PurgEye®  200 Weld Purge Monitor® connected to a pipe
Accurate stainless and titanium weld purging with the PurgEye® 200
Huntingdon Fusion Techniques Limited, UK
Nylon Weld Purge Plug&trade in action
Low cost nylon Weld Purge Plugs™
Huntingdon Fusion Techniques Limited, UK
New Samsung SL-65MC/1000 Turning Center
installed at Chicago Roll Company
Roll-Kraft adds CNC machine to Chicago Roll Company
Roll-Kraft, USA
Weld Purge Film® in action
No risk of lost welds with Weld Purge Film®
Huntingdon Fusion Techniques Limited, UK
RT-4000S single-sided turkshead straightener with 2-Axis motorized adjustment
​Rafter Ships RT-4000S Sgl Turkshead with motor adjust
Rafter Equipment Corp, USA
The Steel Plugs Range is specifically designed for heavier duty applications such as long immersion in water, for use at higher temperatures or for contact with acidic or alkaline environments
Heavy-duty leak testing, sealing and stopping with Pipestoppers®
Huntingdon Fusion Techniques Limited, UK
From top: Fin pass stand & welding head; Turks head stands; Forming unit
Universal Forming Line
Adda Fer Meccanica Srl, Italy
PurgEye® 100 in use
Low cost Weld Purge Monitor® for stainless steel welding
Huntingdon Fusion Techniques Limited, UK