×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Inconel And Chlorine Dioxide

Inconel And Chlorine Dioxide

Inconel And Chlorine Dioxide

(OP)
I'm only on the fringe of this situation, and it isn't an area I normally get involved in. A vendor has recommended an inconel X-750 spring in a metering pump check valve for chlorine dioxide service. This is to be installed in a location with very awkward access, so we don't want to be buying something that's going to be a maintenance headache. Any problems with inconel in this service?

RE: Inconel And Chlorine Dioxide

What is the operating temperature? Will any moisture be present?

RE: Inconel And Chlorine Dioxide

(OP)
The operating temp is amibient. I'm not sure about moisture. Is there a range to be avoided?

RE: Inconel And Chlorine Dioxide

(OP)
I was given incorrect info -  the operating temp range is between 205*F and 275*F.

RE: Inconel And Chlorine Dioxide

Inconel 600 is not recommended for use in chlorine dioxide service(0.5% at 36°F, & 8-12% at 150°F).  If I were you I'd avoid using it, so you don't have to fight the maintenance headache.  Hope that helps.

RE: Inconel And Chlorine Dioxide

(OP)
Is there a material that would be more suitable? Thanks for your help.

RE: Inconel And Chlorine Dioxide

It's your temperature range that I'm worried about.  Aluminum is good to 70°F, but anything over that would be a guess.

RE: Inconel And Chlorine Dioxide

Titanium as a base material is recommended in chlorine-containing environments (including chlorine dioxide) due to the presence of a stable, passive oxide film.  The proprietary alloy TIMETAL 15-3 from TIMET is available in high strength strip.  If the spring requires bar/wire, then Ti-3-8-6-4 (also called Beta-C) is the most common alloy for springs.  TIMET and Dynamet, part of Carpenter Technology, are leading suppliers of Ti materials and Renton Coil Spring is a leader vendor of titanium springs.  Use the following links for more information:

http://www.timet.com/Index2_content.html

http://www.cartech.com/dynamet/

http://www.coilspring.com/aerospace/company/index.html

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!


Resources