[MW:13544] Re: 13415] Filler welding for A351 Gr CD4 M Cu
Tanks a lot for your message and I want to add somme details on the
It is a condensate pump which data is:
1) The pressure discharge is 240 bara,
2) The temperature is between 130°C and 140°C,
3) Pump type is Multi-cellular with 12 stages,
4) Piping material is A351 CD4 MCu, this is strange to me, because a
pump barred which operates in those conditions is made of stainless
My best regards,
Project engineer (SONATRACH ALGERIA)
On 19 jan, 07:39, "rbenad...@avl.sonatrach.dz" <refazosa...@gmail.com>
> Sir Goswami,
> Hello !
> Tanks a lot for your last message and I want to add some details on
> the subject.
> It is a condensate pump which data is:
> 1) The pressure discharge is 240 bara,
> 2) The temperature is between 130°C and 140°C,
> 3) Pump type is multicelulare with 12 stages,
> 4) Piping materials isA351CD4MCu; this seems strange to me, because
> a pump barred which operates in those conditions is made of stainless
> Thanks in advance,
> BENADJAL Redouane
> Project engineer (SONATRACH Algeria)
> On 6 jan, 00:54, "pgoswami" <pgosw...@quickclic.net> wrote:
> > Hello Benadjal,
> > A351Cd4MCu.pdf
> > 129KAfficherTélécharger
> > Stainless Q & A 2004-09-012-CD4MCu pump.pdf
> > 54KAfficherTélécharger
> > Cd4MCu is a cast duplex stainless steel with not so good weldability. Advice
> > would be to use matching filler wire /electrode. Recommendation is to
> > solution anneal the weld after welding, if the weld thickness is large,
> > typically over 1/2", or else weld with very good control over heat input and
> > interpass temperature.
> > Generally this grade of Duplex S.S ( which is added with Copper) is
> > preferred for corrosion resistance in acid media. What's the media in your
> > case?? . If the service media is such that choice of Cd4MCu is a must then
> > 308/308L filler metal would not match the corrosion requirements.
> > See the attached articles which explains the pros and cons on welding of
> > this alloy. The second one Q&A is an extract from AWS-Welding Journal, and
> > explains this alloy in details.
> > I hope this would be of help to you.
> > Thanks.
> > Pradip Goswami,P.Eng.IWE
> > Welding & Metallurgical Specialist & Consultant
> > Ontario,Canada.
> > Email-pgosw...@sympatico.ca,
> > pgosw...@quickclic.net
> > -----Original Message-----
> > From: email@example.com
> > [mailto:firstname.lastname@example.org] On Behalf Of
> > rbenad...@avl.sonatrach.dz
> > Sent: Thursday, January 05, 2012 4:46 AM
> > To: Materials & Welding
> > Subject: [MW:13415] Filler welding forA351GrCD4M Cu
> > Good morning,
> > I chose type E308 & E 308 L filler welding forA351GrCD4M Cu material,
> > the choice was made, as per ASME Section II Part C code,
> > Question: Is it a good choice?
> > Thanks.
> > Best regards.
> > BENADJAL Redouane
> > Project engineer (SONATRACH Algeria)
> > E-mail: refazosa...@gmail.com
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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.