EJWhite
Industrial
- Dec 5, 2001
- 4
Welding a P-11 pipe to a P-1 tank do I need to Post Weld Heat Treat the weld or is there a thickness or preheat loop hole in ASME Section IX? Tank is 3/8" nominal SA-516-70 material. Pipe is SA-335-P11. I can also change from P-11 to P-22 or P-5.