As per ASME Section 1, it is not mandatory for thickness less than 16mm, provided preheat of 150℃ is to be done. Ref PW39
On Sun, Nov 1, 2020, 4:07 PM 'Raja kumarasamy' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear allr,
My project we have A106 GR B to A335 P11 Dissimilar welding ,Can any on suggest the PWHT and it's required?
t- 8.74mm
Dia: 2''
Regards
Raja kumarasamy
Multi Discipline Inspector (TPI)
ADNOC Waste Heat Recovery
ProjectRuwais, AbudhabiUAE
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