Mr. Shiva,
The recommended PWHT Temp. for SA 213 T91 is 720 to 760 deg. C
Hence 740 deg.C should not pose any problems.
sridhar.
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From: boom shiva <boomboomshiva122@gmail.com>
To: materials-welding@googlegroups.com
Sent: Tuesday, 28 August 2012 4:13 PM
Subject: [MW:15143] PWHT OF T91
what effect would be there if SA213 T91 tube is PWHT at lower than 760 deg. C? suppose 740 deg. C?
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