RE: [MW:5235] NDT after PWHT

Dear All

I had this before, according to my knowledge there is no standard mention the same, but according to metarology wise, after PWHT if there is any small porosities in the weld, & it is not appears clearly in the RT films, it will accumulate after PWHT & become one porosity, accordingly smart inspector they will distinguish the same,

 

Hoping my point is clear to all

 

Regards

Majdi Elyyan

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Luis Albanes
Sent: Friday, May 21, 2010 9:43 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:5214] NDT after PWHT

 

Thanks to all the group it´s been very helpfull, I conclude that for my material ASTM A516-70 RX after PWHT is not so necesary.- Regards Luis Albanés --- El jue 20-may-10, dlsltd@telus.net <dlsltd@telus.net> escribió: De: dlsltd@telus.net <dlsltd@telus.net> Asunto: Re: [MW:5199] NDT after PWHT A: materials-welding@googlegroups.com Fecha: jueves, 20 de mayo de 2010, 13:11     I don't believe there is any requirements, but on  P5-B materials, it is a common practice as cracks have been known to form after 24 hours on these materials. I have heard of some materials on "Hold" pending another RT after the initial test after 7 Days.   I have just completed PWHT on ASME 1 piping and there is no requirement on P1 material for additional RT after cool down. ----- Original Message ----- From: Luis Albanes To: materials-welding@googlegroups.com Sent: Thursday, May 20, 2010 6:30 AM Subject: [MW:5198] NDT after PWHT   Dear friends We just finished PWHT in an LPG sphere acording to ASME VIII section I, and I can´t find in the code the part that obligues to Xray after this treatment, any one has experience with this? where does ASME VIII say it has to be done? Thank you Luis Albanés   -- 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.

 

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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.