As you said ,Test coupon is 50mm thick with GTAW 25mm and SMAW 25mm welding. Generally GTAW is used for root and hot pass, not for 25 mm. If you do 25 mm GTAW WELDING, your production rate as well as welding cost will be more.
Follow ASME Sec IX QW-451.1, It will be helpful for you
On Sun, Mar 31, 2019 at 7:56 PM George Dilintas <dilintas@gmail.com> wrote:
you are confusing the base metal thickness range and the deposited thickness range.Those are two distinct essential variablesΣτις Σάβ, 30 Μαρ 2019 στις 6:59 π.μ., ο/η Nabeel <khan.nabeelahmed@gmail.com> έγραψε:--I have reviewed a PQR for GTAW+SMAW welding. Test coupon is 50mm thick with GTAW 25mm and SMAW 25mm welding. On the WPS thickness range is given as upto 200mm for both GTAW and SMAW.How is this possible as more than 38mm test coupon qualifies for up to 200mm welding ??
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----Dr. Georgios Dilintas,Dipl. Ing. In Aeronautic and Space EngineeringPh.D in Mechanics of Solids - Computational MechanicsA.I.S, A.N.I, IRCA Lead AuditorWelding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis
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