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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Soldering Stainless to Brass

We are trying to bond Stainless Steel tubing to a brass manifold in an application that cannot tolerate corrosion. I've heard that a coating of copper or tin can be applied to the stainless to increase solderability without resorting to an acid core flux. We just need to coat the outside of a thin wall, 3/8 in. o.d. tube for about an inch on each end.

Can this be done at reasonable cost compared to the price of the tubing? Should I try something else?

Thanks!

Will J [surname deleted for privacy by Editor]
Vanderbilt University - Nashville, Tennessee, USA

Yes, Will, you can copper plate the tubes after you have Wood's Nickel plated them. The familiar Revere Ware copper bottomed stainless steel pots can be used as a model of how it would work. Good luck!

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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