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!
  • Students Click Here

*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


Metals compatible with Cunifer?

Metals compatible with Cunifer?

Metals compatible with Cunifer?

What metals are most compatible with cunifer pipes in saltwater?
We make sensors using
Stainless (no-go; corrodes quickly)
Monel (supposedly good for saltwater resistance, but it seems to be more away on the corrosion charts)
Hastelloy C4 / C22 (and I don't know which would be better)

I've seen some studies that say Hastelloy C is a good match, but others say that Hastelloy C4 & C22 should be avoided in saltwater environments...

RE: Metals compatible with Cunifer?

High alloy stainless grades, 6%Mo superaustenitics (AL-6XN), C-22, or Ti would all survive very well.
Galvanic corrosion is another issue. Monel 400 should be the closest, but I don't have any data.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

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!


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