RE: [MW:16435] QW407.2 (ASME Sec. IX)

The requirement for ±14 is a personal requirement.  Interpretation IX-07-06 clearly defines the temperature range for ferritic materials to be restricted only to the broad groupings of QW-407.1. 

 

John A. Henning

Welding & Materials

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Prakash Hegde
Sent: Friday, January 04, 2013 2:28 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:16430] QW407.2 (ASME Sec. IX)

 

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)

 

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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