Welding SA-312 TP321H pipe to SA-182 F9 Socket Weld Valve
Welding SA-312 TP321H pipe to SA-182 F9 Socket Weld Valve
(OP)
I've got the subject scenario to do. I need to qualify a weld procedure. Planning on 400°F preheat and 1350°F or so PWHT. Having some difficulty picking the best filler metal. Line will be in high temperature steam service. I was thinking either going matching the lower alloy and using ER80S-B8 or the higher and use ER347H. Third choice would be ER309 or ER309Mo.
Any suggestions?
Any suggestions?





RE: Welding SA-312 TP321H pipe to SA-182 F9 Socket Weld Valve
RE: Welding SA-312 TP321H pipe to SA-182 F9 Socket Weld Valve
RE: Welding SA-312 TP321H pipe to SA-182 F9 Socket Weld Valve
RE: Welding SA-312 TP321H pipe to SA-182 F9 Socket Weld Valve