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Electroless Nickel plating over brazed/welded 316 stainless steel

May 18, 2010

Q. We have an application where we would like to us a Electroless nickel plating on a brazed/welded 316 stainless steel assembly! Are there any problems with this concept?

This is our first design where we want to spec out this plating and want to find the failure points and need to understand what testing would be required to validate that we have good plating application.

The main reason for plating the stainless is to avoid SCC Stress Corrosion Cracking!

Earl Rightmier
Engineer - New Jersey

May 19, 2010

A. My gut feeling is that it will not prevent stress corrosion. It may retard it quite a bit. I would run test samples and put the weld thru a series of bend tests to make sure that you have good adhesion. If you are MIG or stick welding this, I would use a bronze brush on the joint to help make sure that it is ready for plating. A 410 brush will promote rusting.

James Watts
- Navarre, Florida

March 5, 2013

Q. We have hermetically sealed connectors (material SS 316L), which need to be plated with electroless nickel plating and the contacts with gold over nickel. Our customers are facing a problem with weldability of the surface. Is laser welding a problem if there is an undercoat of nickel over the bare metal?

Basically after hermetic sealing, there is a layer of oxidation and hence plating is required.

Can you suggest a suitable finishing for this problem?

55050-1 316 stainless steel plated with electroless nickel

Vidya Upadhyaya
- Bangalore, India

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