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Brazing a Stainless Steel Plate to Copper Tubing with SSQ-6



These pics come from a new aerospace test facility that they are constructing at the University of Notre Dame. The SSF-6 is working great.


aluminum welding and metal repair

I am attempting to make all of these fittings air tight as they are used for pressure measurements. We can¹t have any leaks. I had very little warpage of my base metal and I think this is really going to work out very well.


metal fabrication and repair with muggyweld

Thank you,


David Hipskind
Turbomachinery Technician
The University of Notre Dame
Institute for Flow Physics and Control (FLOWPAC)
The Hessert Laboratory for Aerospace Research


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There are many industrial, domestic, and small business uses for brazing copper to stainless steel.  In this article, we will use the SSQ-6 silver solder paste to solder a stainless steel plate to copper tubing.


To prepare the parts for soldering, we have pre-cleaned copper tubing and a stainless steel plate (shown above).



Just squeeze the silver paste from the syringe onto cold metal and use any torch to make the braze joint. Add the paste where needed and wipe of the excess prior to soldering.



As you can see, we did not wipe off the excess paste to demonstrate how the paste can spread outside the joint if not applied properly.



SSQ-6 silver brazing alloy is much stronger than ordinary solder purchased at your local hardware supply. A propane torch was used for this demo.


SSQ-6 Silver Solder Products

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SSQ-6 1 oz Syringe
SSQ-6 1 oz Syringe

FEATURES: Tensile strength up to 85,000 psi, almost 18x the strength of regular solders Hand..