×
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

Backing Rings

Backing Rings

Backing Rings

(OP)
I have noticed that most all backing rings are made of A-109. I also noticed that this material is not listed in section 3 of D1.1 yet it seems to be very common.
Am I missing something or is this a case where procedure testing per section 4 will need to be applied for welding pipe with the ring?

RE: Backing Rings

Clause 5 in D1.1 calls out A109 T3 and T4 as being a requirement for steel backing when you're not using a backing from Table 3.1, Annex M, or the steel that was qualified per Clause 4. This is 5.2.2.2 in the 2004 edition.

RE: Backing Rings

(OP)
Thanks!

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