Weld Overlay Limit

[jgibbs22]

​

Does the ASME Code (Division 1 or 2) limit the amount of weld overlay that could be used on a component to increase the overall thickness to handle a higher pressure? Example, if I had a 12" Diameter Carbon steel shell that is 1" thick, is there a limit to how much weld overlay could be put on it for increasing the thickness? Not really a practical thing necessarily to do of course, but more of a general question of what the Code would allow.

 

[JohnGP]

I agree that ASME codes don't limit thickness of weld overlay, but thickness would be limited on economic grounds anyway because any additional strength of the overlay material cannot be taken into account per UCL-23(c) (Div 1) and 4.1.9.2 (Div 2).