Dear Mr Hussain
PWHT QW 407.2 is applicable in case of suplimentary essential i.e. When Weld has to undergo Impact test6
In this case Soaking time for Production coupon or ajob should be at least 80% of the soaking time of relevent PQR qualified And Soaking Temp should be with in 14 degree of the of the soaking temp of PQR qualified (i.e If your PQR is qualified at Soaking temp say 600-615C then your Job / Test coupon also should be heated in thyis range and Not at say above 615C Even though this temp is below AC1
Regards
Hegde P.B.
+91880559304
From: Tariq Hussain <tariqhussain632@gmail.com>
To: materials-welding@googlegroups.com
Sent: Wednesday, 2 January 2013 5:26 PM
Subject: [MW:16407] QW407.2 (ASME Sec. IX)
To: materials-welding@googlegroups.com
Sent: Wednesday, 2 January 2013 5:26 PM
Subject: [MW:16407] QW407.2 (ASME Sec. IX)
Dear All,
-- We need little help from you regarding below query for ASME Sec. IX QW-407.2
Is it intention of QW-407.2 to have Production Welds Soak Temperature (Vessel Soak temperature) exactly same as that of done in PQR test Coupon?
Thanks in Advance
Tariq Hussain
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