[MW:4304] Clarifications for various clauses of ASME SEC IX

Dear All,

Please clarify meanings of below clauses with examples.

1) whether new PQR has to be performed if there is change in GROVE TYPE from V to U During production OR only revising the WPS by incorporating the changed GROVE TYPE will be enough.

2) Whether gas purging used during GTAW welding can be consider as BACKING.

3) Please clarify the meaning of paragraph - QW - 403.5( Only for paragraph below point C) with example.

4) Please clarify the meaning of paragraph - QW - 202.4b(2)with example.

5) whether change of electrode clasification under same SFA e.g. change of elctrode from E7018 to E7018-1 or VICE VERSA requires qualification of new PQR.

6) Please clarify the meaning of paragraph - QW - 404.12 & 404.33 with example.

Thanks & Regards

Asad Azmi

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