Hi Pradip,
Heating above 300 Deg C - APP Max 150 Deg C / Hr up to Soaking temperature around 620 Deg C ,It should below Tempering temperature of your product
Cooling rate - APP Max 150 Deg C / Hr up to 300 Deg C temperature after you can cool in air, you can get HRC Value below 22.
Refer the stress relieving temp at A.2.14 Welding in NACE book
By
Jegan
From: pradip kumar sil <pradipsil@gmail.com>
To: materials-welding@googlegroups.com
Sent: Wednesday, 14 September 2011 3:22 PM
Subject: [MW:12450] PWHT criteria for NACE material
Dear Exparts,
Can anybody tell me, NACE carbon steel PWHT heating/ cooling rate
where is it mentioned.
Regards
Pradip
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To: materials-welding@googlegroups.com
Sent: Wednesday, 14 September 2011 3:22 PM
Subject: [MW:12450] PWHT criteria for NACE material
Dear Exparts,
Can anybody tell me, NACE carbon steel PWHT heating/ cooling rate
where is it mentioned.
Regards
Pradip
--
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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