PWHT for SS overlay 1

[3lilaggies]

Doing a SS overlay onto carbon steel. Does anyone know where I can find PWHT requirements? Doing to ASME 8 and 9. Any guidance would help.

 

[metengr]

If this is for a pressure vessel, the PWHT exemptions for a corrosion resistant weld overlay applied on a carbon steel substrate can be found in ASME B&PV Code, Section VIII, Div 1, Part UCS. See Table UCS-56.