×
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

seal welding non-weldable materials from ASME Section II part D

seal welding non-weldable materials from ASME Section II part D

seal welding non-weldable materials from ASME Section II part D

(OP)
Greetings!   I have a question pertaining to welding of materials listed in ASME Section II part D.  Specifically, bar stock of SA 564 type 630 (S17400) is listed with a W1 note, which indicated that this material is not for welded construction.
   However, I wish to use this material in a design where none of the design loads will be taken up by the weld.  The catch is that I want to put in a non-structural seal weld in lieu of a gasket.
   Does anyone have any experience with something like this?  Is this something that is likely to be allowed when designing to Section Viii Div 1?  
Thanks!
-Kristjan

RE: seal welding non-weldable materials from ASME Section II part D

See UW-5(b) for starters.

Regards,

Mike

RE: seal welding non-weldable materials from ASME Section II part D

(OP)
Thanks Mike,
   UW-5(b)seems to deal with non-pressure parts being structurally welded to a pressure vessel.  I would not consider a seal weld to be a structural weld necessarily, since in its absence the vessel will still not fail structurally, and may not even leak.  I am curious as to whether using a small seal weld as a gasket with a material that has a W1 non-welded construction note will result in the material being considered unacceptable for use.
Thanks again!
-Kristjan

RE: seal welding non-weldable materials from ASME Section II part D

ktgottfr, I don't see the word structural in there anywhere.

If welds are made on the pressure boundary it must be shown to be a weldable material.

The words "proven of weldable quality" show up over and over.

Regards,

Mike

RE: seal welding non-weldable materials from ASME Section II part D

In my experience, there's no such thing as a 'non-load carrying weld'.   

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