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Re: [MW:14525] RT Requirement for Dished end befoe and after forming

By Materials & Welding
As your dish end is of SA36 (carbon steel) material RT can be done after you have welded the L/S in the blank.
In plate stage it is easier to place the film and convenient for taking RT.
It is a standard practice by dish end manufacturer to clear RT in the blank stage before proceeding for forming.
There is no clause in ASME Sec VIII Div1 regarding this. You can also refer your customer technical specs. if they have mentioned anything about this.
 
Regards
 
Prem Nautiyal
Cell: 9004063879 / 9769316004
 

From: Amit Udavant <amitudavant@gmail.com>
To: materials-welding@googlegroups.com
Sent: Monday, June 11, 2012 4:33 PM
Subject: [MW:14517] RT Requirement for Dished end befoe and after forming

Dear All
 greetings,
This is the case of the  vessel where dished end size id 3000 ID and the Dished Ends are 10:1 Torispherical, 14 thick made of SA36 material.
The blank dia size for Dished End is 4 meters and is achived by butt welding of 2 Plates2500 + 1500.
The Dished End is to be 100% Radio graphed.
Is the RT to be done after welding and before forming OR after welding and forming both. OR Before  and after forming.
what does the ASME Sec VIII Div say abt it??
 Please specify the clause no.

--
Warm Regards
amit
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