In which Code or standard are required the 48 hours waiting time?
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager
From: madhan chozhan [madhanchozhan@gmail.com]
Sent: 02/08/2014 08:35 AM ZE8
To: materials-welding@googlegroups.com
Subject: Re: [MW:20042] NDT after weld and stress releive
Dear Martin,
48 hours is required waiting time after the PWHT is completed before starting the NDT.
cheers,
madhan
On Fri, Feb 7, 2014 at 7:25 PM, Martin Prad <martin_prad@hotmail.com> wrote:
--Hello,
Material is AISI4130 welded few monts ago. A stress releif is applied now. How many hours are required to wait after a treatment as a cool down time to start NDT? can you shed a light on this please? Construction and inspection code is B31.3. I reviewed the code but couldn't find anything about the time.
regards
Martin.
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