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When welding a smaller weldolet (WOL) fitting to a larger run pipe for a branch connection, would the weld to the run pipe/header be considered a buttweld or fillet weld?
the bonneyforge document says its a full penetration groove weld but B31.3, 328.5.4 welded...
I am preparing to weld a NPS 6 O-let branch unto a NPS 12 mainline. the welding procedure does not specify any details about NDE/NDT, a colleague says we have to use liquid penetrant after each pass, can anyone shed more light on this scenario, please. which is better, magnetic particle testing...