Wednesday, August 3, 2011

Re: [MW:12077] Re: welding of cast ductile iron

for cast irons ,study ESAB documentation;it possibile to use 3 types of electrodes for welding the ductile irons parts

From: VJ <vnjoshi.leo@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Wednesday, August 3, 2011 7:07 AM
Subject: [MW:12072] Re: welding of cast ductile iron

You can remove those marks provided you are meeting the design
thickness.
If service is nuclear or any stringent then you can refer to customer
with Non confirmity report and rectification procedure for acceptance.


On Aug 3, 8:34 am, TRaviku...@flowserve.com wrote:
> Dear export
>
>  as i know  there is possibility to weld cast ductile iron (repair), i
> need a explanation in detail If possible with Standard reference.
>
> expecting reply
> RAVIKUMAR T S
>
> E-MAIL :traviku...@flowserve.com
>
> From:   atul chaturvedi <atulchaturve...@gmail.com>
> To:     <materials-welding@googlegroups.com>
> Date:   08/02/2011 08:03 PM
> Subject:        Re: [MW:12065] Roller marks
> Sent by:        <materials-welding@googlegroups.com>
>
> Dear Navaneetha kumar,
> Evaluate the defect as per attached wall thickness tolerance and you
> can remove the defect by grinding as you state that the remaining wall
> thickness is within specified limit.
> Find the attached section 9.3 and 11.4 of API Specification 5LD for
> CRA Clad pipe.
> Regards
> Atul Chaturvedi
> Punj Lloyd Ltd
> +971508272217
>
> On 8/2/11, yash yagnik <yash2...@gmail.com> wrote:
>
>
>
>
>
>
>
> > Accept it.
>
> > No harm accepting as it is considering its not sharp. But make sure that
> > this is in knowledge of your client and take them in confidence before
> > taking any final decesion.
>
> > Yash
>
> > On Tue, Aug 2, 2011 at 1:46 PM, navanee kumar <dnk...@gmail.com> wrote:
>
> >> Dear Experts,
>
> >> Operating temperature = below 120deg
>
> >> But it is CRA clad piping spools.
> >> Found visible this defect after blasting.
> >> 0.5-0.6mm radial deep/3mm width not sharp corner.
> >> And wall thickness is more than the standard.
>
> >> On Mon, Aug 1, 2011 at 5:18 PM, Venkateswaran <
> >> k.venkateswa...@ionexchange.co.in> wrote:
>
> >>> **
> >>> Dear Navaneethakumar,
>
> >>> We faced the same problem. when i was working in one of the neuclear
> >>> power
> >>> project for utility water piping(SA106 gr.b) ,we rejected the pipes
> >>> because
> >>> the depth of impression is more and visually  we can  able to
> >>> detect.(after painting it will show more ripple like apperance.)
>
> >>> Better reject the pipes.
>
> >>> Regars
>
> >>> K.Venkateswaran
>
> >>> ----- Original Message -----
>
> >>>  *From:* sudhakar kuppuswamy <mechsudha...@gmail.com>
> >>> *To:* materials-welding@googlegroups.com
> >>>   *Sent:* Sunday, July 31, 2011 8:33 PM
> >>> *Subject:* Re: [MW:12012] Roller marks
>
> >>> Mr Navaneethakumar,
>
> >>>                   Please can you  give more details like design
> >>> code,service condition. design temperature and pressure.
>
> >>> if the  service condition are   high pressure&temperature  then these
> are
> >>> not acceptable..!!
>
> >>> if it is normal  pressure  and temperature depends on service
> condition
> >>> you  can make your  judgement and accepted..!!
>
> >>> simply rejecting is not a correct solution always !!!!
>
> >>> with regards,
> >>> sudhakar.k
>
> >>> On Sun, Jul 31, 2011 at 2:20 PM, navanee kumar <dnk...@gmail.com>
> wrote:
>
> >>>> Dear Experts,
>
> >>>> Is it acceptable roller marks on the pipe?
>
> >>>> Please find attached photographs.
>
> >>>> Thanks&Regards,
> >>>> Navaneethakumar.D.
> >>>> +971505583738
>
> >>>> --
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>
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> >>> --
> >>> With regards,
> >>> Sudhakar.k
>
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> >> --
> >> Thanks&Regards,
> >> Navaneethakumar.D.
> >> +971505583738
>
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> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
> [attachment "API5LD.pdf" deleted by Thattekere Siddappa
> Ravikumar/Asia/Flowserve]

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