American Welding Society Forum
In Table 9.13 it is given that 6G welders with or without backing shall weld PJP of TKY joints,while only 6GR welders shall weld CJP of TKY joints.My doubt is "If a TKY joint root is welded with a 6GR welder can 6G continue the subsequent passes considering the root as backing weld and PJP?
AWS makes no distinction of weld depth limitation/qualifications like other codes, so multiple welders performing welding on one joint is a gray area at best.
The weld would still technically be classified as a CJP, therefore I would say no, not allowable.
It would really come down to having a written procedure and having it approved by the Engineer of Record (EOR). If they agree with it, then its allowable.
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