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[MW:13646] MIS- MATCH

By Materials & Welding
 
Dear All
 
Kindly share your informations regarding the below query,
 
In a ASME B 31.4 constructing line ( 24", sch. std),  the joints are given with tee & pipe. but unfortunately contractor procured tee with more thickness (13.2mm) which is resulting in external miss-match  of around 6-9mm. according to 31.4, the maximum allowable is 4.8mm (1/2 t, t= 9.53mm). as the joints are already welded, how this can be corrected? is grindingof weld and re-welding is allowed? or to be cut and re-welded? (pls. note the ID is almost matching).
 
Thanks & regards
 
Kumar.

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