Hi, Did u use 3 Codes for your vessel construction? Strange. and how it is possible to use 3 codes in one vessel construction?... Pls.verify your design and drawing for the Construction Code.If it is specify ASME Sec.VIII-Div.1 .,then you can reply to your customer that you have followed ASME.
Thanks & Regards,
(Karthik)
Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282
--- On Fri, 9/9/11, murugesan jeyaraman <jmurugesan@gmail.com> wrote:
From: murugesan jeyaraman <jmurugesan@gmail.com>
Subject: [MW:12389] Need advise to clarrify client - Dish head stress relieving simulated PWHT test panel
To: materials-welding@googlegroups.com
Date: Friday, September 9, 2011, 2:29 PM
Dear Friends Please offer me your suggestion how we can settle the following case. We fabricated and supplied one pressure vessel to one of our client two years back. Now only they have reviewed our documents and come back with following observations. Code of construction is ASME VIII Div 1 and AS1210 and AS4458, Material SA 516 Gr 70, thickness 30 mm, Our vessel dish head is Stress relieved as per ASME viii Div 1 code requirement, but we have not done any simulated PWHT test panel for this stress relieve treatment. as per AS 4458, Unless any mechanical test is done to prove Stress relieved components are restored to their original material properties, normalising is the preferered heat treatment for cold formed components. It is obvious from above that either we have to do SR with Simulated PWHT test panel or Normalising of dished head. Actually we have overlooked AS 4458, so we have only done SR without PWHT test panels, so no mechanical testing was done. At this stage we cannot do normalising as plant is already running. At this stage, we do no have stock of same heat number plate. Please suggest how we can answer this observation. Can we say we have overlooked AS and SR done as per ASME Viii Div 1 as a normal practice in South east asia. We hve not done any Hardness test being carbon steel material. Thanks Murugesan -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/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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http://materials-welding.blogspot.com/ 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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