I guess you are overlaying Head or shell ( SA516 Gr. 70 ) with a thickness of 60mm,
Yes, PWHT is required for this thickness and depends on the base metal thickness not overlayed thickness.
You will require 2 WPSs, one for Welding SA516 Gr. 70 to SA516 Gr. 70 with SMAW and SAW, one more for overlay on the welded plate. PWHT requirements to be referred from UCL-35 which would further steer you to UCS-56 which says PWHT is required for any material thickness more than 33mm (if i recollect).
Regards
Manpreet Singh
On Thu, 06 Jan 2011 03:40:03 +0530 rinshad abdul rahman
>
Dear all,
>
> I just want to know that whether PWHT is required for CRO on SA516 Gr. 70 (60 mm thick) on the same part we need do SMAW+SAW weld with 60 mm nominal size (construction is as per ASME BPV SEC VIII DIV 1)
>
>
-- >
> I just want to know that whether PWHT is required for CRO on SA516 Gr. 70 (60 mm thick) on the same part we need do SMAW+SAW weld with 60 mm nominal size (construction is as per ASME BPV SEC VIII DIV 1)
>
>
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>
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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