Re: [MW:19351] Burnt through in Tube to tubesheet joint (on tube)

Dear Sachit,

It is happening due to high current welding in tube tube sheet joint. Actually tube projection shall be 3±1.5. It can be acceptable when tube punctured up to the tube sheet edge level, if the tube punctured beyond the tube sheet edge level(Tube to tube sheet expansion area) it's strictly not acceptable because there will be leakage in hydro or air test. In this case you should replace the new tube. In my experience there is no acceptable limit.

On Thu, Nov 7, 2013 at 9:04 AM, <sachit.baroda@gmail.com> wrote:

Dear All,

 

Pls let me know if there is any acceptance or rejectance criteria for the defect observed in the attached pic. as per ASME section viii div 1 or  TEMA.

How does it affect the performance or working of the heat exchanger /working condition.!!?

 

 

Regards

 

Sachit

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.