Working out NDE for a new project.
Client requires all Cat. D welded to be fully UT inspected. There are several nozzle which require reinforcement pads. The question is.. Is the inner repad reinforcement weld considered part of the Cat. D weld, or is just the nozzle to shell / head pressure...
I'm currently qualifying welders to welder procedure with the following variables
-A-516 70 (P1) (1/2" thk plate)
-SMAW (F4)
-3 postions (2G / 3G / 4G)
I plan on testing the welders on a 12" pc of plate. There will be approx. 3.5 inches of each position.
No where in the code can I find how...
I have a question regarding the use of A105 / Aluminum Lap Joint flanges according to B31.3 in the following arrangement.
Design Temp: -320 deg F
Design Press: 100 PSIG
The actual 'stub end' of the connection is Aluminum (B247 6061-T6), the A105 portion is the backing flange that doesn't...
