- Repair organization should hold NBIC- R stamp.One holding such credentials may do repair and alterations in both DIV-1& DIV-2 vessels
-
Authorization for alterations to pressure vessels that comply with ASME Section VIII, Divisions 1 and 2, and for repairs to pressure vessels that comply with ASME Section VIII, Division 2, may not be given until an engineer (a P.E) has also authorized the work.
-
Welding procedures shall be thoroughly qualified to meet all DIV-2 requirements.
-
If the vessel was subjected to PWHT during original construction and the repair is deemed to be done without further PWHT, then a Temper bead repair procedure shall be established as per ASME Sec-IX and additionally as per the guidelines of NBIC-RB or API-510. .
API-510,Appendix-A provides the exemption categories for containers and pressure vessels.
If the vessel to be repaired belongs to any of these categories,NBIC guidelines should be followed.
Thanks.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Pieper QSI
Sent: Thursday, January 12, 2012 9:02 AM
To: materials-welding@googlegroups.com
Subject: [MW:13461] RE: 13458] Section VIII Div. 2 vessel repair
Dear Sir,
Be aware that both P460NL1 and SA612N are fine grain high strength steels for moderate and low temperature service, so I would not suggest hot working because this will lower materials mechanical properties. If necessary you need to simulate the heat treatment and execute mechanical testing in order to ensure the material keeps its properties.
Met vriendelijke groeten / Best Regards
Herman Pieper
Pieper Quality Support & Inspection
Phone: +31 (0)521 380083
Fax: +31 (0)84 7539225
Cell: +31 (0)6 51691215
www.pieper-qsi.nl
Van: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Namens David Stevenson
Verzonden: woensdag 11 januari 2012 23:52
Aan: materials-welding@googlegroups.com
Onderwerp: [MW:13458] Section VIII Div. 2 vessel repair
To the experts,
The vessel is a transportation portable tank built under the ASME section VIII div. 2 guidelines, if the shell is damaged and would need to be sectioned or repaired by welding or hot work what documentation and approvals would a repair facility be required to hold in order to make an ASME / NBIC repair that would keep the tank in service as an ASME vessel?
I am aware the shop would need an R stamp to repair a Section VIII Div. 1 tank would it be the same for Div. 2?
The tank vessels are of P460NL1 material and others are of SA612 N.
THE FIRST CHOICE IN TANK CONTAINERS
DAVID STEVENSON
TECHNICAL MANAGER
Eurotainer U.S. INC.
5810 Wilson Rd. Suite 200, Humble, Texas, 77396 USA
Phone 01 832 300 5019 (Direct)● Mobile 01 713 805 0192 ● Fax 01 832 300 5050
email: dstevenson@usa.eurotainer.com ● website: www.eurotainer.com 
Please consider the environment before printing this document
--
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.
No comments:
Post a Comment