×
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

510 inspection of a CAT structure

510 inspection of a CAT structure

510 inspection of a CAT structure

(OP)
To all; I am 2nd year API 510 inspector an starting a new turnaround next week. On this job I will be working the Cat structure. My past experience is towers and drums with little to no experience on the structure. Can someone point out some of the main components of the structure (3rd stage separator, reactor ext..) and the inspection back ground. The discovery work is complete so for the most part it will be repairs but I would like an idea of what I am walking into. Thank you!!

RE: 510 inspection of a CAT structure

Look for grooving due to entrained abrasive - cat is usually alumina dust with 'magic' additives. Grooving will be just past ells and nozzles. Look for stress and creep problems - cat crackers run HOT. Assume any repair, weld or basemetal is a crack, and personally verify complete removal prior to welding. This time of year, be present at the start of welding, checking for proper preheat; most cracker parts are thick and w/o preheat will yield Underbead cracking in repair welds. This means start of shift, break(s) and lunch. "If you don't care enough to climb up and check it, how can you expect the welders to care about getting it just right?"

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