Thank you for your responses.
@SectionIX
Yes, that's exactly what I was thinking too. It will require a process engineer and reliability engineer to decide if SMAW only will be adequate for the P5B process. We will need to perform welder qualifications in that case to weld with F4 without...
I have a WPS with two SMAW processes for example E6010 root and E7018-1 fill and cap.
According to ASME Sec. IX QW-200.4 I can use just one of those filler metals individually in a joint.
eg. I can use this WPS to use E7018-1 for an entire weld - root, fill and cap. We use this for welds on...