[MW:15023] Piping service PWHT & RT

Der Sir,

Construction code ASME B 31.3.
In one of our line class in piping service requirement is 100% PWHT,
but its RT requirement is 10%, and no other NDT for Butt Weld Joints.
We are using ER70S-2 for Root Run and E7018 for Fillup and capping.

Is it acceptable? Please give ant code reference for piping.

As in my opinion we generally do PWHT below lower critical temp for
releaving the stress and there may be the possibility to open the
crack if there is any probablity.
So we do NDT for that after PWHT prefably RT/UT.

--
Thanks & Regards
Biplab Pal
Mechanical Inspector (PMT)
YASREF Project

E-mail: biplab.mech@gmail.com

Information in this email and any attachments is confidential and intended
solely for the use of the individual(s) to whom it is addressed or
otherwise directed. Please note that any views or opinions presented in
this email are solely those of the author and do not necessarily represent
those of the Company. Finally, the recipient should check this email and
any attachments for the presence of viruses. Myself accepts no liability
for any damage caused by any virus transmitted by this email.

--
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.