What are the requirements for B31.3, Undercut, Root Reinforcement, UT
What are the requirements for B31.3, Undercut, Root Reinforcement, UT
(OP)
I'm new at this and I'm wondering what are the requirements for Undercut, Reinforcement (Root and Cap), UT testing? Thanks and I appreciate your help





RE: What are the requirements for B31.3, Undercut, Root Reinforcement, UT
The acceptance criteria for UT in addition to that contained within the table is indicated in para 344.6 and is related to the length of the discontinuity.
An example for a girth and mitre groove weld would allow 1/32" or "T"/4 whichever is less.
Reinforcement is related to wall thickness an 1/4" wall would alow 1/16" Reinforcement >1/4" to <1/2" would allow 1/8".
Hope this helps. If this is being used for actual weld inspection, I suggest the actual code be referred to to assure I have not made any mistakes.
Good day
Gerald Austin
Iuka, Mississippi
http://www.weldinginspectionsvcs.com