×
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

Alloy & Non-Ferrous ASME vessels

Alloy & Non-Ferrous ASME vessels

Alloy & Non-Ferrous ASME vessels

(OP)
Hi,
I work for a fabrication shop and we only make carbon steel pressure vessels to section VIII, Div 1.  I have been there 4 years now, so I have a pretty decent understanding of the code.  But now my boss tells me we might start doing high-alloy and non-ferrous vessels.  If we do that, they will hire someone with experience in this area.  But I want to be a little ahead of the curve and learn more about these since I'm sure I'll be involved too.  
I am looking for some insight how high alloy or non-ferrous materials affect the design and fabrication process, compared to just plain old carbon steel vessels.  
Any help is appreciated, thanks!

RE: Alloy & Non-Ferrous ASME vessels

Hi in43y

Most important is total separation of stainless from carbon (I dont think its SO critical for high alloy but perhaps still a good idea). This means separate area, spearate tools - everything to avoid carbon pick-up.

RE: Alloy & Non-Ferrous ASME vessels

The first thing I would do is if you have ASME Section VIII, Div 1 find Part UNF and review uses (UNF-3) and material sections (UNF-5), also find Part UHA, and review similar sections.

RE: Alloy & Non-Ferrous ASME vessels

And if your fab people do contaminate your stainless by rubbing it over carbon steel items, as ndeguy is warning against, you will need to spot pickel/passivate those areas as they will rust forever if not removed.

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