×
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

ASME/ASNI welded fittings ASME Sec. VIII Div 1.

ASME/ASNI welded fittings ASME Sec. VIII Div 1.

ASME/ASNI welded fittings ASME Sec. VIII Div 1.

(OP)
Hello,

I am new to the forum. I am an AWS CWI working in a technical department for a welding supply company in the US. One of my duties is Shop surveillance covering the auditing of WPS’s, Welder Quals and Code compliance.
When I first entered this particular vessel shop I noticed some issues with insufficient penetration on some small bore nozzles welded directly to the vessel shell. They are weldolets/threadolets.
These vessels fall under Sec. VIII Div 1.

My question is.
Where in Section VIII do I find the requirements for these?
NPS 3” and down weldolets
Shell thickness 1 ½-2 ½ thick
I have been reading in UW-16. It appears that these fall into the Cat D weld classification and would require complete joint penetration and they can only be welded from one side.
I would like to be able to narrow this down to line and paragraph so that I may present this to the customer QA manager.

Thanks
Jeb.

RE: ASME/ASNI welded fittings ASME Sec. VIII Div 1.

jebthereb, read UW-16 carefully and fully. Under some conditions small connections may be fillet welded from one side only. See UW-16(d),(e).

Regards,

Mike

RE: ASME/ASNI welded fittings ASME Sec. VIII Div 1.

And if these items are O'lets, they are indeed required to be Full-Penn, not 'set on' with a fillet.

RE: ASME/ASNI welded fittings ASME Sec. VIII Div 1.

(OP)

Quote (sntman)

jebthereb, read UW-16 carefully and fully. Under some conditions small connections may be fillet welded from one side only. See UW-16(d),(e).

Regards,

Mike

I did. I am always amazed at what I miss.

(d)(e) dont apply-these are not set through. they are set on.

16 (f) addresses these fittings. With some exceptions (2)(3)(4)(5)(6) which does not apply here these fittings shall be welded by full penetration welds.

I just wanted to make sure I have the right line and paragraph and any other places that may address this.

Quote (duwe6)

And if these items are O'lets, they are indeed required to be Full-Penn, not 'set on' with a fillet.

Yes they are.

RE: ASME/ASNI welded fittings ASME Sec. VIII Div 1.

Quote (jebthereb )

I did. I am always amazed at what I miss.


Yeah, me too, 20 years at it... :)

Regards,

Mike

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