ASME IX
ASME IX
(OP)
I would like to understand ASME IX concerning welders qualification.
QW 350 gives essential variables. For SAW, P Number is an essantial variable and we have to see QW 403.18.
QW 403.18 gives “ a change from one P Number to any other P Number or……. exept as permitted in QW423, and QW 420.2.”
We have a welder qualified with a base metal P N°1.
Is it Qualified for P N°1 through PN°11?
Alternatively, is a welder qualified for a PN°11, qualified for PN°1?
I would like to understand the exeption.
Thank you for your answers
JL
QW 350 gives essential variables. For SAW, P Number is an essantial variable and we have to see QW 403.18.
QW 403.18 gives “ a change from one P Number to any other P Number or……. exept as permitted in QW423, and QW 420.2.”
We have a welder qualified with a base metal P N°1.
Is it Qualified for P N°1 through PN°11?
Alternatively, is a welder qualified for a PN°11, qualified for PN°1?
I would like to understand the exeption.
Thank you for your answers
JL





RE: ASME IX
RE: ASME IX
RE: ASME IX
RE: ASME IX
RE: ASME IX
So , if I'm all right, this is an example of where ASME is a little stup.d and why it is so difficult to understand...
is Anybody approve what I advance ?
RE: ASME IX
RE: ASME IX
RE: ASME IX
Welder test in meant only to proove welders' ability to weld with specific filler. It has very little to do with the base metal.
For establishing weldability PQR is required.
Putting Human Factor Back in Engineering