×
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

Repair of hydogen affected damages

Repair of hydogen affected damages

Repair of hydogen affected damages

(OP)
We have taken out a high temp H2 service U-tube exchagner for repair after two years of service. The weld between channel to nozzles made in F22 Cl3 have cracks in the welding as detected by TOFT. There are no apparent damages seen on nozzles or shell forging. We need to gouge out both nozzles completely to ensure all defects are removed before they are welded back.

I would like to know what NDT should be performed on shell and also nozzles faces after they have been removed to ensure they are free from hydrogen attack.    

RE: Repair of hydogen affected damages

Wet fluorescent magnetic particle testing (MT) of the weld prep and surrounding base material.

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