Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

High strength dielectric washer?

High strength dielectric washer?

High strength dielectric washer?

Hi all,

I am looking for a high strength dielectric washer (>100ksi yield)
I have a test setup of Inconel to Steel in a Salt Spray chamber.

I am aware of the potential for galvanic action and I am looking for a high strength dielectric. The force between Inconel and Steel will be max ~100ksi

Any Ideas?

I also read in the forum about LanoCote and Tef Gel as coatings.
this is a 10 day test so it doesn't have to last forever.

The Inconel is required for strength and to also not corrode in the salt spray.
I can consider alternatives to the Inconel..however they need to be very strong and not corrode.

What I am testing is the Steel under stress. Inconel is used to create stress.



RE: High strength dielectric washer?

Ceramic washers are readily available and have good dialectric properties. They can be fragile though, especially if used on surfaces that aren't well finished.

RE: High strength dielectric washer?

Ceramic is the only way to go with this.
How dielectric do you need?
Reach out to the CoorTek guys for info.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: High strength dielectric washer?

Thanks, I really don't know how to specify the dielectric strength needed.
Just want to break the electrical contact so I don't get galvanic action.

I will look into and let you know how it worked.

Thanks again!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


The Low-Code Digital Transformation Guide
Change the way you develop apps and, in turn, change the way your business operates and engages with customers, leading to new channels of revenue. This ebook is the culmination of 14 years of experience with 4,000 customers that have all transformed their business through low-code development. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close