Sunday, August 12, 2012

Re: [MW:15071] 14919] Stress relieving Rejected for 5 min less soaking time.

That is for Impact test, as john said it is rejected and do it again
pandithan

On 8/7/12, sachin sankhe <sachin.sankhe@rediffmail.com> wrote:
> Hi Friends
> ASME SEC IX gives relaxation on soaking time i.e atleast 80% of that
> required on production joint
> RegardsSachin.Sankhe
>
>
>
>
> From: "pgoswami" &lt;pgoswami@quickclic.net&gt;
> Sent: Wed, 25 Jul 2012 17:44:39
> To: &lt;materials-welding@googlegroups.com&gt;
> Subject: Re: [MW:14949] 14919] Stress relieving Rejected for 5 min less
> soaking time.
>
>
>
>
>
> Harish/Mohd,
> &nbsp;
> I am not trying to act as moderator.
>
> &nbsp;
> Looking at the problem, a separate simulation may be as
> time consuming as the original HT. Code is a law, with engineering
> judgments.
> Hence the inspector has the rights to declare that the original HT was
> inadequate. The simplest solution what looks to me is to perform additional
> SR
> for 15-20 mins and satisfy code requirements.
> &nbsp;
> PWHT time is all cumulative , and there no restriction
> form ASME code.
> &nbsp;
> Thanks.
> &nbsp;
>
>
>
>
>
> Pradip
> Goswami,P.Eng.IWE
> Welding
> &amp; Metallurgical Specialist
> Ontario,
> Canada.
> Email-pgoswami@sympatico.ca,
> pgoswami@quickclic.net
> &nbsp;
>
>
>
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of Harish
> Kannepalli
> Sent: Monday, July 23, 2012 11:58 AM
> To:
> materials-welding@googlegroups.com
> Subject: Re: [MW:14942] RE: 14919]
> Stress relieving Rejected for 5 min less soaking time.
>
>
>
> You can propose the following to your client:
> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Perform Simulation on separate
> coupon, check the mechanical &amp; metallurgical properties. If they meet
> the
> code requirements, it may be acceptable. After all, code is made by humans
> for
> humans.
>
>
> 2012/7/23 John Henning &lt;jhenning@deltak.com&gt;
>
>
>
>
> Most
> common materials require 1 hour/25mm or 60minutes/25mm and I assume you
> are
> working with one of these materials.&nbsp; Then, for a 40mm thick material
> the
> required minimum soak time is (40mm)*(60min.)/(25mm) = 96
> minutes
> &nbsp;
> You
> don't meet Code required minimum soak time.&nbsp; Your soak time must
> exceed
> the minimum time.&nbsp; Therefore, your pipe weld is unacceptable.&nbsp;
> No
> discussion – it is clearly unacceptable in its present
> condition.
> &nbsp;
>
> John
> A. Henning
> Welding
> &amp; Materials
> &nbsp;
>
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of
> mohd
> Sent: Saturday, July 21, 2012 1:52 AM
> To: materials-welding@googlegroups.com
> Subject:
> [MW:14919] Stress relieving Rejected for 5 min less soaking
> time.
> &nbsp;
> Dear expert,
>
> &nbsp;
>
> As per ASME 8-1-UCS-56
>
> &nbsp;
>
> We have done SR for our 40mm thk-30" pipe
> joint.
>
> &nbsp;
>
> but unfortunetly, soaking time was just short by 5min.Now
> our client/PMC both are not agree to release.
>
> &nbsp;
>
> Required time : 1hr.15min
>
> Actual Time : 1hr.10min
>
> &nbsp;
>
> It is acceptable OR could you share any technical view
> to&nbsp;convince&nbsp;client?
>
> &nbsp;
>
> regards,
>
> mohd.
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> regards,
> Harish.
>
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