What would be the best choice for weld filler metal with the following joint description: 2-1/8" x 0.150" MWT SA213-TP347H to SA213-TP310HCbN (HR3C) with a SA213-TP347H backing ring. The joint will be in service in a coal fired boiler, and could see temperatures as much as 1200 deg...
Can anyone tell me if there is a maximum recommended temperature rate of change (heating rate) of 2-inch, Schedule 80, SA106 Carbon Steel pipe? I am heating the pipe from 120 deg F to about 490 deg F in approximately 5 minutes. Will this rapid heating rate cause any problems in the pipe?
