PWHT shall be done.
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, Jul 9, 2019 at 9:24 AM N VENKATESWARA PRASAD <weldengr.velosi@gmail.com> wrote:
Dear Experts,--The Primary supports are welded to pipe ( Carbon steel) and PWHT was not done for amine service. All the butt welds have undergone PWHT. PWHT issue was noticed after completion of commissioning. As per API 945, residual stresses are one of the reason for amine cracking. Please advise how we can convince client that residual stresses due to pipe supports welding have no effect on amine cracking.
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