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Section I Welding Question

Section I Welding Question

Section I Welding Question

(OP)
I want to weld T11 boiler tube to carbon steel tube, WT = 0.180" or less.  I need to know the possible preheat and PWHT reqirements in Section I, which I do not have access to.  Thanks.  
 

RE: Section I Welding Question

250 F (120 C) per Table PW-39, for P No. 4, General Notes (a)(1)(c).

RE: Section I Welding Question

(OP)
Thanks, Stanweld.

RE: Section I Welding Question

With wall thickness up to 0.165" (max) and max OD of 1.5", preheat is not mandated when buttwelded with the GTAW process per same note.

RE: Section I Welding Question


 No Preheat is required for this 4.5mm thick

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