Dear Mohan:
You did not mention your service requirements, that information is required to answer your question but I guess that it is cold temperature service.
in general, since these grades have impact toughness requirements, My recommendation is yes, go for PWHT otherwise your HAZ impact specimens may fail.
Regards
Ramin Kondori
Sr. QA/QC & Welding Engineer
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PG-Dip. in Welding Engineering (IWE AT 0070)
BSc. in Civil Engineering (IUT)
BGAS Painting Inspector
ASNT Level I&II
On Tue, Feb 12, 2019 at 10:56 AM Mohan <ggnanamalli@gmail.com> wrote:
Dear Experts,--Whether PWHT is applicable or not for the material SA350 LF 2 Cl.1 Thickness 18mm.RegardsG Mohanraj
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