The field of welding is pretty new to me, and i'm still trying to cover some of the basics.
i intend to weld
1.A335P22 with A182F22
2.A106GrB with A-105
3.A53GrB with A-105
4.A182F22 with A312TP304
5.A-105 with A312TP304
Are these material combinations compatible as far as welding is concerned? I matched them with ANSI B16.11.
These are critical pipe lines no more than 1/2" in diameter apart from SS304, which is 1/4".
Fittings will be socket welds [mostly class 1500] (fillet joints), with no apparent PWHT requirement.
Is SMAW sufficient, or will it require a GTAW root followed by SMAW capping?