×
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

Reduction of MDMT, Weld Metal

Reduction of MDMT, Weld Metal

Reduction of MDMT, Weld Metal

(OP)
I have some existing equipment for which the customer wants to reduce the MDMT. The avenue available is UCS-66(b). The resulting MDMT is to be WARMER than -55 F.

This will of course require a detailed examination of each component to determine the UCS-66(b) ratio, and available exemption.

The weld procedures used appear at first look to be impact test qualified to -20 F. The first paragraph of UCS-67 seems to allow the UCS-66(b) exemption to be applied to the weld metal as well. I quote:

"The MDMT used below shall be the MDMT stamped on the nameplate or the exemption temperature of the welded component before applying the temperature reduction permitted by UCS-66(b) or UCS-68(c)."

I can apply the UCS-66(b) exemption and lower the MDMT of the weld metal and HAZ below -20 F.

Agree?

Happy Holidays,

Mike

RE: Reduction of MDMT, Weld Metal

Yes, I would agree after my review of UCS-66 and UCS-67.

RE: Reduction of MDMT, Weld Metal

(OP)
metengr, thanks as always.

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