DEFECT WELD
(VISUAL)
PIN HOLE
PIN HOLE
1. Formed for welding as gas: CO2 , CO , NO2 , SO2.
2. The wind getting into the area welds.
Result
The possibility of leak high at the defect.
Countermeasures :
Defect in gouging to roots welds, Then fills weld appropriate wps repair.
Rejection criteria :
The existence of defect Pin Hole rejected and must be repaired any size.
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