Sunday, January 23, 2011

Re: [MW:9414] ASME Sec VIII, Div 1, Pressure Vessel/ Dish End

Dear Ajay,
 
The Rewording you have provided is absolutely correct.
I have consulted our A.I and he confirmed that the PDR is required.
 
Still i am not totally convienced. I think you can put more light by supporting similar real time work in past.
 
Hope to hear more information regarding the same.
 
Thanks & Regards
Vino P Varghese
________________________________________________________________
On Sat, Jan 22, 2011 at 9:32 AM, DOKKU AJAY <akdd83@yahoo.com> wrote:
Rewording your query, correct me if i'm wrong,
 
"The clad plate will be in 2 pieces welded together which will be bonded together with base plate of SA516 Gr.70 (Single piece). After the explosion bonding, then the plate will be formed to make head."
 
If this is the case, then you don't need to have PDR, as i believe the plates (Base+clad) will be prodcued & certified as per SA-263/264/265 and then formed into heads. Please refer UCL-11 (a).
 
If still in doubt, then consult your AI.
 
Dokku Ajay Kumar
Mobile: +966 500071054



From: Vino Varghese <vinopvarghese@gmail.com>
Sent: Fri, January 21, 2011 2:46:38 PM
Subject: Re: [MW:9390] ASME Sec VIII, Div 1, Pressure Vessel/ Dish End

Dear Karthik and All,
 
Thanks for the reply. Appreciate to see your quick reponse.
 
I have 1 more Question for you.
 
The manufacturer does not have a single piece for the Cladded part(3mm) and they intent to achieve this by joining 2 plates by welding. The Base Material(27 mm) Plate is Seamless for the Dish End.
The Dish End is achieved by Explosion Bond Process and the Base Materials is 27mm, SA 516 Gr.70 + 3mm Clad Plate(Inclloy 825).
The disbond shall be checked by UT.
 
As there will be Welding involved, should not we request for a Partial Data Report signed by a A.I at the Manufacturer Shop before it is delivery at our Fabrication Shop?
 
Thanks 
Vino  Varghese
Doha-Qatar  
 
 
___________________________________________________________________________

On Fri, Jan 21, 2011 at 8:01 AM, Karthik <karthik6684@yahoo.com> wrote:
Hi,
Please find below my suggestions as marked in RED.
1) Does this shop need to have ASME "U" Stamp? - No need. (UG-11 (b) )

2) Do we require a Partial Data Report from this Manufacturing Unit duly signed by Autorised Inspector? - No need.Manufacturer of the
part shall furnish identification in accordance with UG-93.
You have to certify the Dish end as you are the U stamp holder and manufacturer as per
(UG-11 (b) ) and UG-79 and submit the report and related documents to AI for acceptance.

3) Do we require this Manufacturing Unit to be Approved by requesting them to submit Pre-Approval Document? - As per your Quality System.

4) What all min. Documents are required to be submitted in accordance to ASME Sec VIIII Div 1. - If for dish end only means,Material certificates,Dimension Reports,If there is any Heattreatment applicable...Heat treatment report etc.,
If for the Whole vessel,it will be as per your quality manual and ASME Sec.VIII,Div.1-Appendix-10,10-3 (Record Retension)
5) The Contract for this Vessel was signed by Client on June 2010. Can we use ASME Sec VIIII Div 1, 2007 with 2009 Addenda or we have to follow ASME 2010? - You can use ASME Sec VIIII Div 1, 2007 with 2009 Addenda
 
Please do provide relevant Clause from ASME supporting the above Queries.
 
Hope to see as usual opinion. Also someone can share QAP of similar use.(SA 516 Gr. 70 + Clad , Incolloy 825.) and relevant WPS. - You mean ITP? it shall be prepared by you as per the drawing and scope of work.
For WPS..please send the doubts in preparation of WPS.we can assist you.
Thanks & Regards,

(Karthik)

Karthikeyan.S
QA/QC Manager
Getabec Energy Co.,Ltd.
379,Moo6,Soi8,Nikhomphatana,
Rayong-21180,
Thailand.
Phone: 0066 38 897035-8 (Off)
Fax: 0066 38 897034
Hand Phone: 0066 892512282


--- On Fri, 1/21/11, Vino Varghese <vinopvarghese@gmail.com> wrote:

From: Vino Varghese <vinopvarghese@gmail.com>
Subject: [MW:9358] ASME Sec VIII, Div 1, Pressure Vessel/ Dish End
To: materials-welding@googlegroups.com
Date: Friday, January 21, 2011, 2:17 AM

Dear All,
 
We have a Partial Cladded Vessel("U" Stamp Vessel) which we are intend to fabricate at our Manufacturing shop and is designed for Sour Service.
The Overall thickness is 30 mm.
 
The Partial Claddded Area has the -
Base material = 27 mm thickness , SA 516 Gr. 70
Clad Material =  3mm min. , Incolloy 825.
 
One of the Dish End is a Cladded part(Explosion Bond Method) which we are planning to off load work to a "U" Stamp Manufacturer Shop due to limited forming availablity at our Fabrication Facility.
My Question -
1) Does this shop need to have ASME "U" Stamp? - No need. (UG-11 (b) )

2) Do we require a Partial Data Report from this Manufacturing Unit duly signed by Autorised Inspector? - No need.Manufacturer of the
part shall furnish identification in accordance with UG-93.
You have to certify the Dish end as you are the U stamp holder and manufacturer as per
(UG-11 (b) ) and UG-79 and submit the report and related documents to AI for acceptance.

3) Do we require this Manufacturing Unit to be Approved by requesting them to submit Pre-Approval Document? - As per your Quality System.

4) What all min. Documents are required to be submitted in accordance to ASME Sec VIIII Div 1. - If for dish end only means,Material certificates,Dimension Reports,If there is any Heattreatment applicable...Heat treatment report etc.,
If for the Whole vessel,it will be as per your quality manual and ASME Sec.VIII,Div.1-Appendix-10,10-3 (Record Retension)
5) The Contract for this Vessel was signed by Client on June 2010. Can we use ASME Sec VIIII Div 1, 2007 with 2009 Addenda or we have to follow ASME 2010? - You can use ASME Sec VIIII Div 1, 2007 with 2009 Addenda
 
Please do provide relevant Clause from ASME supporting the above Queries.
 
Hope to see as usual opinion. Also someone can share QAP of similar use.(SA 516 Gr. 70 + Clad , Incolloy 825.) and relevant WPS. - You mean ITP? it shall be prepared by you as per the drawing and scope of work.
For WPS..please send the doubts in preparation of WPS.we can assist you.
 
Thanks & Regards
Vino P Varghese
Doha-Qatar

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