Dec 1, 2010 #1 flight23 Mechanical Joined May 9, 2008 Messages 8 Location US What is the major difference in the two codes when it comes to governing thickness when figuring out if a material needs to be PWHT? Seems to be grey when you get to attachments (i.e OLETS)in 31.3.
What is the major difference in the two codes when it comes to governing thickness when figuring out if a material needs to be PWHT? Seems to be grey when you get to attachments (i.e OLETS)in 31.3.