×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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!
*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

Allowable Undercut

thread378-16987

Allowable Undercut

Allowable Undercut

(OP)
What is the maximum allowable undercut for a pipe fillet weld under B31.3? Under B31.1?

RE: Allowable Undercut

Sorry, but I can only help you with the B31.3.

As per the requirements of ASME B31.3 Addenda-2001, Table341.3.2-

Category D & Normal Fluid Service where fillet welds include socket and seal welds, and attachment welds for slip-on flanges, branch reinforcement, and supports:
Depth of undercut- ¡Â 1 mm (1/32in.) and ¡Â ¨ù of the wall thickness

Severe Cyclic Service:
Depth of undercut- Zero (no evident imperfections)

RE: Allowable Undercut

lenny.....

For B31.1 Power piping, review Chapter VI, "Inspection, Examination and Testing"....... See Section 136.4.2 "Visual Examination of Welds"

In this Section, undercut that is deeper than 1/32" is cause to reject.

Addtionally, vertified inspection people must perform the examination.

Good Luck !!!???

MJC

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! Already a Member? Login

Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close