Dear Sir,
The following activity mentioned as DP test after PWHT as per the client requirement.
1.The client requirement to be fulfilled as mentioned.
2.DP test after PWHT has every chance of showing some defects due to the process of stress relieving which may not be shown before PWHT.
Regards,
Prasanna.R.U.
Bureau Veritas-Chennai
On 5/31/10, KOLA Ramalingeswara Rao <krraoind@gmail.com> wrote:
Dear Rao,Client is correct, if job is requires PWHT, NDT shall be perforemd after PWHT.Regards,K.Ramalingeshwara Rao.
On Sat, May 29, 2010 at 1:12 PM, PAMULA <vasantharao2009@rediffmail.com> wrote:
Dear All,
I have conducted Overlay PQR qulification (316L OVERLAY ON SA516 Gr.70N) as per ASME Sec IX.
As per ASME SEC IX QW-453, note 4, 5, 9, we have conducted
1. DP test after every layer(total 3layers) in as-welded condition.
2. 4-Side bend tests in PWHT condition.
3. Chemical analysis from overlay specimen in as-welded condition.
Job requirement:
316L weld overlay on SA516 Gr.70, vessel will under PWHT at 620 Deg.C.
ASME Div.1 Cladded Vessel.
Client Comments on PQR.
client is demanding us to provide DP report After PWHT of the overlay.
Client says PWHT is essential variable, DP test & bend tests should be conducted after PWHT.
Query.
Is it Code (Sec.IX or Div.1 ) requirement to conduct DP test after PWHT ?.
If it is code requirement, pl. provide the reference from code.
if any code interpretations available, pl. provide the same.
regards
P.Rao.
--
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.
--
Cell no.9791032304/8140283631 --
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