Allowable Tube Wall Reduction Tube-to-Tubesheet Joints expended in 2 grooves and seal welded

[Pushpraj Anand]

Dear experts

 Please let me know the Allowable Tube Wall Reduction Tube-to-Tubesheet Joints expended in 2 grooves and seal welded 

Tube is SA179 ,20 mm OD & 2 mm thick

Tube sheet SA299 Gr B , 20.20 +_ 0.05 mm hole dia with 2 grooves inside the hole 

Please also share the applicable clause of TEMA or ASME stand.

Regards

Pushpraj Anand

  

[Madhan S]

Dear Pushpraj

Formula for tube expansion, D=d+e+t

D- Tube ID after expansion.

d- Tube ID before expansion.

e- Clearance between tube OD and Plate ID

t- Applied Diameter expansion is 0.6 mm. (0..6mm Use can change depending on your groove depth.)

In your case you have seal welding also. So Don't worry for leakage.

With Regards,

Madhan. S

[CHINTUKUMAR GANDHI]

Dear Mr. Pushpraj,

Since ASME & TEMA does not specifiy tube wall thickness reduction limit, for C.S. materials 8-10% thinning is recommended as per Good Engg. Practice and reputed PMC spec.

Thanks & regards,

C. R. GANDHI

---

From: Madhan S <madha...@gmail.com>
To: Materials & Welding <material...@googlegroups.com>
Sent: Tuesday, November 17, 2015 9:11 AM
Subject: [MW:23889] Re: Allowable Tube Wall Reduction Tube-to-Tubesheet Joints expended in 2 grooves and seal welded

--
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-weld...@googlegroups.com.
To post to this group, send email to material...@googlegroups.com.
Visit this group at http://groups.google.com/group/materials-welding.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/80f9e288-02b6-4df8-beab-762d5de20648%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.