Dear experts,
i have one question, and I need your help. Thanks first
My WPS is SAW, qualified for tube OD = 2000mm spiral welding pipe sheet pipe.
my WPS is for splicing 2 pipe ( that mean you connecting 2 pipe together )
the joint design is X bevel
and the layer step of welding is:
1. GMAW at root
2. cover out side SAW
3. cover inside SAW
so now if I want to change the step welding layer to:
1. GMAW at root
2. cover inside SAW
3.cover out side SAW
and all other parameters are not change
=>> so my question is . Do I need to requalify my WPS, OR I just rewrite WPS and keep the original PQR,no need to test PQR again
THANKS FOR YOUR HELP.
Jerry.
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