If its seal weld then Normal GTAW process WPS as per ASME SEC IX can be used for welding. No need to go for Tube to tube sheet Mock-up.
Thanks & Regards,
Mohd. Azam
Doha-Qatar
--As per QW-193.1, you have to duplicate the tube hole configuration and the tube-to-tubesheet joint design within the limits of the essential variables
best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS PIRAEUS - GREECE
Tel: +30 210 40 63 113 /4 /5
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04
venkkatesh krishnan ---14/05/2015 11:52:03---Dear Experts, I need to do tube to tubesheet mock up test, as per qw-193 the
From: venkkatesh krishnan <venkkateshkrishnan@gmail.com>
To: materials-welding@googlegroups.com
Date: 14/05/2015 11:52
Subject: [MW:23281] Tube to tubesheet welding
Sent by: materials-welding@googlegroups.com
Dear Experts,
I need to do tube to tubesheet mock up test, as per qw-193 the thickness of the tubesheet in the mockup test assembly shall be at least as thick as the production tubesheet, except it is not required to be thicker than 2 in. (50 mm),
Existing Design:
Tubesheet thickness is 85mm
Joint Detail: Double groove + expansion and groove with seal welding
Expansion area: full length leaving 3.2mm from back side.
Based on above said point tubesheet exceed 50mm thk there is no need to same as production coupon, so if i am taking 50mm thickness leaving 3.2mm from backside and remaining area expansion + welding it's correct way(expansion area is 47mm),but actual existing expansion area is 82mm, so I have to take 85mm to mock up test instead of 50mm or go with 50mm thickness with 47mm only expansion area which one is correct?
I attached 2d drawing of tube to tubesheet joint detail, Kindly clarify my doubt.--
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.
To post to this group, send email to materials-welding@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/ed0751db-4928-4db0-8431-20b4238e30ca%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.This message contains confidential information. To know more, please click on the following link: http://disclaimer.bureauveritas.com
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.
To post to this group, send email to materials-welding@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/OFD4B8CF7D.E3E52306-ONC2257E45.0033EA6A-C2257E45.003420CC%40LocalDomain.
For more options, visit https://groups.google.com/d/optout.
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.
To post to this group, send email to materials-welding@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/CABD%2BRXT7Ao77M5xV%2BEU3mvJyerDy%3D7B-77rPMG_2mhJf%3Dd9FDQ%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.
No comments:
Post a Comment