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How to Silver Solder Copper Nickel or Cupre Nickel



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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SSQ-6 is used to braze two pieces of cupre nickel together. A propane torch was used on the two pieces of copper nickel, one tube was flared so the other could be inserted for tight fit. Copper nickel or cupre nickel is a widely used alloy in the marine industry due to seawater corrosion resistance. Copper nickel is found extensively in boat hulls, heat exchangers, condensers, hydraulic lines, and piping as it also has a high resistance to biofouling. Copper nickel is commonly 95% copper and 5% nickel, 90/10 or 70/30 depending on the need.


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..