one of our client has approved a PQR qualified with the base metal is P5B to P5B.purging and Pre heat also done, having O.D.-4'',
thickness 14mm,process for root,hot pas,filler pass1 with GTAW,remaining filler pass & final with SMAW
my question is
we have same material & pipe dia 5" dia pipe,6.55 thickness,with only GTAW process only.now i can use that WPS where SMAW is also there.or i have to prepare another WPS with same PQR.
so please experts give valuable advice
thanks & regards
have a good day
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