repair Monal casting grade M 35-1 1

[smart143]

We have to repair monel casting M35-1 (ASTM A494)UNS No. N24135 by GTAW process. can anybody suggest suitable filler wire & precautions during & post welding.

 

[jwhit]

Filler would be ERNiCu-7. You will need to qualify a weld procedure in order to legitimately repair the casting. Keep in mind that you want to control your interpass to 300-350f Max and that good pre-cleaning and interpass cleaning are necessary to successfully weld this material. Fully remove the defect prior to welding.

 

[TOVmania]

Once the weldment reaches an ambient temperature, make sure to perform PT. This is a must.