[MW:10727] welding of super duplex stain less steel and critical pitting temp.

In our project during procedure qualification for super duplex stain
less steel we are not able to achieve the specified critical pitting
temperature.Welding conditions are

GTAW
ER2594
88%Argon+2%Nitrogen shielding gas
What we have to do to acieve the CPT

PLEASE REPLY

REGARDS

BIJU

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