Hi dear, Minimum pre heat temperature is not mentioned in API 1104, but in sec 9 specified. Then how i can determine the minimum pre heat temperature is 10 deg. C as per API 1104. Just before starting welding, temperature was 32 deg. C. and decreasing preheat temperature is an essential variable as per API 1104. Please clarify. shibu simon
--- On Mon, 19/7/10, AAKARSH PP <aakarsh.pp@gmail.com> wrote:
From: AAKARSH PP <aakarsh.pp@gmail.com>
Subject: Re: [MW:6022] Pre heat temperature
To: materials-welding@googlegroups.com
Date: Monday, 19 July, 2010, 12:11
Hi, for CE upto 0.46 & WT upto 12.7 mm , you can use 10deg celsius as preheat temp.
On Sun, Jul 18, 2010 at 6:29 PM, shibu simon <shibusimon2000@yahoo.co.uk> wrote: | Hi priama PQR test coupon thickness is 12.7 mm. and CE - 0.38
Regards. shibu
From: pirama rayan <piramarayan@gmail.com>
Subject: Re: [MW:6011] Pre heat temperature
To: materials-welding@googlegroups.com
Date: Sunday, 18 July, 2010, 10:53 Dear Shibu What is thickness range of the pipe and CE value ? Piramarayan B
On Sat, Jul 17, 2010 at 9:08 PM, shibu simon <shibusimon2000@yahoo.co.uk> wrote: Dear all,
Carbon steel base metal initial temperature was 32 deg celcius, during PQR qualification as per API 1104. Decreasing pre heat temperature is an essential variable as per API 1104. So what minimum preheat temperature to give in WPS.
Thanks.
shibu simon
--
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.
-- 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.
|
--
-- Regards AAKARSH PP QA/QC-Welding LTCS Shop-Hyundai Engg. & Construction Karan Gas Field Development Project -- 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.
|
--
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.
No comments:
Post a Comment