Backing ASME IX
Backing ASME IX
(OP)
If a PQR states that the GTAW process shall be used on root and fill with SAMW (groove joints) by ASME IX
it is performed to make a WPS with only the portion of SMAW which requires backing (back Weld -E7018 ) is allowed to make backweld with backcouging? or it is necessary to make a new pqr?
it is performed to make a WPS with only the portion of SMAW which requires backing (back Weld -E7018 ) is allowed to make backweld with backcouging? or it is necessary to make a new pqr?





RE: Backing ASME IX
RE: Backing ASME IX
RE: Backing ASME IX
RE: Backing ASME IX
RE: Backing ASME IX
For future reference, there is a distinction between back weld and backing weld (see AWS 3.0). A backing weld is performed prior to filling the joint and is used as backing for the subsequent weld. What you're attempting is a back weld. For backing, on the WPS, list it as weld metal or base metal, as appropriate.
RE: Backing ASME IX
RE: Backing ASME IX