Update : QW-403.16 Subparagraph (a) and (b) added –
On Friday, June 27, 2014 at 11:35:15 AM UTC+4, Rajesh S.Mhaske,Engineer Welding,CSWIP,ASNT,Pune, wrote:
-- (a) For a groove weld attaching a set-on nozzle or branch (with the weld preparation on the nozzle or branch), the range qualified from Table QW-452.3 shall be based on the nozzle or branch pipe O.D.
(b) For a groove weld attaching a set-in nozzle or branch (with the weld preparation on the shell, head, or run pipe), the range qualified from Table QW-452.3 shall be based on the shell, head, or run pipe O.D.
Background – Revised to define welder qualification diameter limits for set-on and set-in nozzle or branch connections.
On Friday, June 27, 2014 at 11:35:15 AM UTC+4, Rajesh S.Mhaske,Engineer Welding,CSWIP,ASNT,Pune, wrote:
Dear sir
Pipe dia : 323.*33 mm thk
Tube dia : 50.8 *6.35 mm thk
Groove design for above pipe to tube welding : set in (groove on header ) / set on (groove on tube )
Welding process : GTAW + FCAW
Qualification of welder: OD >73 mm and Thk - Max to be welded with process GTAW+FCAW
Question :
1) Can above qualified welder be deployed for welding of set in and set on joint.
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