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[MW:35691] Qualification of Square Tube As per ASME Section IX Edn 2023

By Materials & Welding
Dear Members,
I require Qualification of Square Tube as per ASME section IX.
for Butt Joint Can we Consider Square Pipe as Round Pipe or tube for Diameter Limits as per ASME section IX 
 
for T joint in Square Tube to Plate, Can we use Square Tube  instead of round pipe for procedure Qualification as shown in figure.QW 462.4(d) ASME Section IX 

If yes,Please mention Reference & Thk ,Diameter Limits for same.

Thanks

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