hi, the calculated time might be the minimum holding time.also u haven't mention about the holding temperature as per the code and actual holding temperature used in PQR.anyhow during PQR it may be used the lower temperature wuth extra holding time or may be due to the temperature fluxations they have maintain the more holding time or the material thickness used in PQR might be require 4hour holding temperature. If u have any quiries pls.feel free to ask. regards
Karthikeyan.S 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 Sat, 4/17/10, Sakib <sakib321@gmail.com> wrote:
From: Sakib <sakib321@gmail.com>
Subject: Re: [MW:4845] requirements for PWHT
To: materials-welding@googlegroups.com
Date: Saturday, April 17, 2010, 8:23 PM
i have cladding of 25.22.2 urea material on carbon steel plate of thickness 110 mm as per AD 201 table from ASME VIII div ii the holding time is 2hr 15min plus but in _PQR time is 4hr so will you tell why 4 hr is given altough calculated time is 3 hr On Sat, Apr 17, 2010 at 5:49 PM, Karthik <karthik6684@yahoo.com> wrote: | hi, as per aASME section-VIII-UCS56,if the welded joint nominal thicknessthickness more than 38mm shall be PWHT. As per ASME Section-1,PW-39.Welded joint htickness more than 19mm shall be PWHT.Pls.Refer with the applicable code.
Karthikeyan.S 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 Sat, 4/17/10, manpreet <manpreetsin88@rediffmail.com> wrote:
From: manpreet <manpreetsin88@rediffmail.com>
Subject: [MW:4838] requirements for PWHT
To: materials-welding@googlegroups.com
Date: Saturday, April 17, 2010, 12:22 PM Dear All My case is that P1 group Gr.no.2 ,thickness-(16 to 200) Welding process -SAW Is it required to do PWHT & also the appropriate code & standards if it is required. Regards Manpreet Singh 09867303228 -- To post to this group, send email to materials-welding@googlegroups.comTo unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.comFor 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.
| -- with Regards SAQIB JALAL Inspection Engineer PakArab Fertilizer Limited Khanewal Road , Multan office number +92-61-9061 EXT 3110 mobile number +92-321-4043556 -- 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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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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