Saturday, April 2, 2016

Re: [MW:24619] Lethal service requirement

Dear Sachin,
Check your project specification & process data sheet requirements.

Technically you can perform perform PWHT.

Regards,
Vijay Patre

On Apr 2, 2016 1:01 PM, "sachin sankhe" <sachin.sankhe@rediffmail.com> wrote:
Dear Friends,

Need your opinion on below

Equipment
Columns

Design Code

ASME SEC VIII Div.1

Process 

High Wet H2S service(NACE)
Wet Amine service
Very Toxic
Lethal(ASME SEC VIII, UW-2)

Metallurgy/Thk
Base Metal MOC=SA516 Gr.70
Thk=8mm
Clad MOC=SS316L
Clad thk=3mm

Problem
Is PWHT mandatory for clad vessel for above process condition?
For lethal service is PWHT not mandatory for clad vessel as per Table UCS56.1 Note (e)

Regards
Sachin Sankhe






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