[MW:26425] A707 L5 CL#3 clad weld PQR

Hi All,

• A707 L5 CL#3 15.8 mm Flange internal 6 mm overlay cladded with A625 inconell material required to join with API 5L X60 material.
• Need to qualify a WPS by clad welding method using filler ER NiCrMo3 (GTAW) and E NiCrMo3 (SMAW)
• A707 L5 CL#3 - CEV is 0.500
• Toughness test requirement is supplementary essential. 

I need experts guidance for preparation of welding parameter, preheat and inter-pass temperature. Last two test failed on impact, hardness and Chemical tests.

Regards.

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