Re: [MW:13060] PWHT requirement

Hai karthik and Ilankumaran,

The thickness of the shell plate should be 25 mm and the nozzle size should be NPS 12 and above.Soaking Temperature should be 600-650 deg C. For this 10mm pl don,t do any PWHT. U will get severe distortion on shell plates. 

On 25 November 2011 07:45, Sojin K soman <soji.engineering@yahoo.com> wrote:

For this u no need to go for to code also. As this is carbon steel having only 10mm thickness . there is no chance of stress developing.Go through metallurgy of steel (CS,SS, AS) in AWS hand book  volume 4. And u should refer standards for confirmation of thickness limitation.

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From: Karthik <karthik6684@yahoo.com>
To: materials-welding@googlegroups.com
Sent: Tuesday, June 14, 2011 2:30 PM
Subject: Re: [MW:11323] PWHT requirement

Hi, No need to do PWHT as per API650-5.7.4 for material group I,II,III or IIA the thickness is less than 25mm,unless otherwise specified in Project Spec. 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 Mon, 6/13/11, k.ilangkumaran ilangkumaran <k.ilangkumaran@yahoo.com> wrote: From: k.ilangkumaran ilangkumaran <k.ilangkumaran@yahoo.com> Subject: [MW:11317] PWHT requirement To: materials-welding@googlegroups.com Cc: pgoswami@quickclic.net Date: Monday, June 13, 2011, 9:02 PM Dear experts,           Do we need to have PWHT for the plates of SA516 Gr 60 and thickness is just 10mm wall thickness and construction code is API 650 while preparing for PQR. I am not able to understand the requirements as per the code.   Can somebody guide me please?   Regards Iangkumaran -- 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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Muthusamy@balu
QA/QC Mechanical Engineer

DOOSAN Heavy Industries and Construction

Jebel Ali 'M' Station
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