Titanium and 316 Stainless

[stevenmon]

Hello I have a Marine (submersible) instrument design that calls for a Titanium Housing using a 316 Stainless Connector. Would having these two materials in contact with each other cause problems or accelerate corrosion?

The 316 SS connector is threaded into the Titinaium Housing.

Thanks.

 

[mshimko]

The example you describe may be in big trouble!

CRES will be subject to galvanic corrosion in this situation if the metals are immersed or otherwised wetted. Furthermore, from your description I suspect the applicable surface area of the titanium is significantly greater than the CRES; resulting in an even greater rate of attack.