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


Dent Repair for Heat Exchanger Tube

Dent Repair for Heat Exchanger Tube

Dent Repair for Heat Exchanger Tube

Hello every one,
The exchange tube bundle was found with one tube has been damaged; seems to be during handling & transportation; two dents has been observed. NDT LPI "liquid penetrate Inspection” was conducted and showed no indication of cracking. Impact area caused a dent within damaged area measuring ~ 10mm long x 7mm wide x 1.7mm deep. At the impact point pipe section became out of round and the dents bend containing a scratch, gouge, or groove.
However, our construction code is ASME B31.3 process piping and there is no recommendation for this case. Can I apply ASME B31.4 code or ASME B31.8 recommendations??!!

I prefer this tube to be plugged.

Your comments suggestions would be greatly appreciated


Exchanger Specifications:
M.A.W.P. (Tube side): 330 psi @ 600F
M.A.W.P. (Shell side): 190 psi @ 650F
Tube Material: SA-214
Outside Diameter/Thickness: 19.05 mm/2.16 mm (Tmin 1.5 mm min)

RE: Dent Repair for Heat Exchanger Tube

If no cracks are present I would leave it alone. You can plug them but I think it is not necessary.

RE: Dent Repair for Heat Exchanger Tube

A scratch or gouge or a sharp dent would worry me. I would plug in that case.
If it is just a dent, don't worry.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, 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