nabeel3
Mechanical
- Dec 14, 2006
- 122
I am working in a API 650 tank project where the WPS is combo of GTAW (root) + SMAW. The welder is qualified as with backing for SMAW. If the contractor decides to proceed with SMAW in root also using same WPS, can the same welder who is qualified previously perform the welding including the root . The welder will grind from other side the backing weld he deposited.