Thursday, November 16, 2017

Re: [MW:26991] PWHT of lifting lug

Hi Mohammed,

1. See the WPS you have used to weld the lifting lug. If it calls for PWHT, Please perform the same.
2. The code is saying all welds in the Pressure vessel or Pressure vessel part ( i.e) all welds includes pressure part/ no n pressure part / preesure pert to Nonpressure part.
However, If the weld doesn't fall under UCS 56 requirements, you need not do PWHT , if WPS doesn't calls for it.
3. The pressure vessel parts mentioned there refers to part of the vessel only being manufactured by you ( e.g) Dishes/ Quick Opening closure etc.

Thanks and Best Regards,
K.Rajagopal

On Thu, Nov 16, 2017 at 12:56 PM, Muhammed Ibrahim PK <ibratech@gmail.com> wrote:
Dear Mr. Prem,

Lifting lug pad is pressure part as per ASME Sec VIII ?.  The groove of lifting lug will consider as pressure part ?. UCS 56 says pressure vessel and pressure vessel part shall be subject to PWHT.  Still confusing. 







Thanks & Regards
Muhammed Ibrahim PK

On 15 November 2017 at 21:26, PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com> wrote:
The nominal / governing thickness is more than 38mm i.e 40mm FPW.
As per UCS 56, PWHT will be required for the 40mm thick lifting lug weld joint.
You should have welded the lifting lug earlier and sent the equipment for PWHT !!

PREM S NAUTIYAL
CELL : 9769316004


From: Muhammed Ibrahim PK <ibratech@gmail.com>
Sent: Wed, 15 Nov 2017 21:28:10

To: materials-welding@googlegroups.com
Subject: [MW:26985] PWHT of lifting lug
 
Gents,
 
I need to clarify one issue with PWHT of a lifting lug.
 
An ASME Sec VIII Div I vessel require PWHT. lifting lug pad welded with vessel and PWHT done. After PWHT a lifting lug will weld with the pad. The lifting lug having thickness of 40mm and having full penetration groove weld with pad. Is this lifting lug to pad welding required PWHT ?. Please find attached drawing detail for reference.
 
Your valuable advice will be appreciated.
 
Thanks & Regards
Muhammed Ibrahim PK
 
Virus-free. www.avast.com

 

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