Qualification of Square Tube As per ASME Section IX Edn 2023

[Netaji Rayate]

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

[Harish Gandhi]

In my opinion square tube / pipe shall be considered as plate welding which involves overhead, vertical and flat welding. Procedures qualifying above 

Positions and required thickness may be used for welding. In pipe welding direction for welding is continuously changing and requires more skill hence diameter limits are given in code.

Regards

 

Harish Gandhi

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