PWHT
PWHT
(OP)
Hello all,
I have a question on the PWHT after welding for 15B30 materials. History: water quenched and tempered at 400F then welded.
My question is what is the correct PWHT temperature, read somewhere it should be lower than the initial tempering temperature and it makes sense as otherwise PWHT might cause unwanted microstructural change.
Cheers
I have a question on the PWHT after welding for 15B30 materials. History: water quenched and tempered at 400F then welded.
My question is what is the correct PWHT temperature, read somewhere it should be lower than the initial tempering temperature and it makes sense as otherwise PWHT might cause unwanted microstructural change.
Cheers





RE: PWHT
RE: PWHT
RE: PWHT
PS; I would strongly recommend you perform surface nondestructive testing to ensure a defect-free weld region if you leave as-is or perform a 350-400 deg F re-temper of the weld region.
RE: PWHT
RE: PWHT
RE: PWHT