Dear Manoj,
-- As per ASME Sec. IX QW 200.4 (b) it is not possible.
For that you have require PQR (GTAW) above 13 mm qualified for root run. And another PQR (SMAW) covering base metal thickness above 40 mm required.
Means you have to go for new PQR.
On Monday, June 6, 2011 5:26:22 PM UTC+5:30, John Manoj wrote:
On Monday, June 6, 2011 5:26:22 PM UTC+5:30, John Manoj wrote:
Dear All,I have to weld 40 mm thk ss 304 plate to be welded with root GTAW and
subsequent run by SMAW. I have 2 WPS,one WPS GTAW + SMAW thickness
range qualified is 1.6 to 12 mm and another procedure qualified 5 mm
to 50 mm with back gouging.My doubt is can i make one wps supporting with these 2 Procedure
Root with GTAW and subsequent run with SMAW so i can carry out the
welding with GTA + SMAW 40 mm thk without further procedure
qualification.Thanks & Regards.
Manoj
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