Re: [MW:14193] RE: 14178] Fwd: Time span for RT after PWHT

Dear Sir

Is there any Code reference for this.
When PWHT is done, why we need to wait till 72Hrs.
Please advise.

regards
Samshuddin.K


On 5/4/12, Obidike, Boniface (GE Oil & Gas) <Boniface.Obidike@ge.com> wrote:
> Samshuddin,
>
> This depends on the type/grade of material you are working with. Some
> material require RT as soon as the weld cools, some material 24hrs after
> welding, some 48hrs, while some 72hrs after welding. It all depends on
> your material.
> Note: some material demand NDE before and after PWHT
>
> "Quality is the Bone, Be the Dog Always"
>
> Boniface Obidike
> QA/QC Engineer
> Speciality Connectors & Pipes
> Drilling and Production Systems
> GE Oil & Gas Business
> Mail: Boniface.Obidike@ge.com
> Office: +234(1)4629400
> Mobile: +2348163479738
> Home: +2348039409934
>
>
>
> -----Original Message-----
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of samshuddin k
> Sent: Thursday, May 03, 2012 4:03 PM
> To: materials-welding
> Subject: [MW:14178] Fwd: Time span for RT after PWHT
>
> Dear Sir
>
> Good Evening
>
> Generally after 72hrs of welding, we will do RT.
> But in our repair marine project, we dont get sufficient time to follow
> this.
>
> Is it acceptable by Code (ASME /AWS) to do RT immediately after PWHT
> Please guide me with Code reference.
>
> regards
> Samshudddin.K
> NKOM Qatar
>
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