A joint was initially welded with GMAW. Can we do repair on this weld with SMAW.
Need to know a few more things prior to shooting the answer
1.The code you follows
2.Is there any impact requirements?
3.Any PWHT requirements?
You make a weld repair procedure and then submit to Client for approval > and then follows.
ASME SEC IX, No impact or PWHT requirement.
Please go through the link its comprehensive.
If the repair is major then you have to seek clients permission.
There is nothing wrong about using SMAW on GMAW weld but all you need is a qualified procedure that matches with weld metal.
No , because this is essential variable and you can’t violation it .