No
Even if the nozzle is thick, the governing thickness is the thickness of the shell, and you are right in saying that it is a cat D weld
On Wed, Jan 4, 2012 at 5:37 AM, Shadab Ansari <shadabansarialam@gmail.com> wrote:
Dear experts,--Need your help on this issue urgently...We have a heavy vessel thick with construction code ASME Sec-VIII div.2 and lethal service.The plate materials SA-516 Gr.60/70N are exempted from impact testing but SRF fogings as per the thickness requirements need impact testing.Does this means that the joint made between SRF nozzle & Shell shall require an impact test WPS.Also as we know that the production test coupons (PTC) are required only for A & B category joints, where as Shell to SRF Nozzles fall in D category weld joint, will it call for PTC's.Waiting for reply...Shadab Ansari
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