Re: [MW:8613] INCONEL 625 OVELAY ON SA 516 GR 70

Hi!

Generaly for Inconel 625 Fe is restricted to max 5% and if you want to reduce the Fe% we require to

i) Ask Electrode manyfacturer to get the elctrode with lesser Iron % which is being suppled by reputed mfgr like Spl metal,Bohler, or even L&T  EWAC

as per our requirement

ii)Some time it is advisible to use 3 layers of overlay for SMAW or GTAW process

iii) You can achieve less than 5% say up to 3% by ESSC process

 

For such stringent requirement you need to establish the parameters and overlay technique

 

Regards

 

Hegde p.B.

 

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From: PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com>
To: materials-welding@googlegroups.com
Sent: Wed, 8 December, 2010 9:21:42 PM
Subject: Re: [MW:8601] INCONEL 625 OVELAY ON SA 516 GR 70

Hi

Are you talking about max. Fe (iron) content ?
Ferrite content in overlay of Inconel 625 deposit ???
How much is the required overlay thickness ?
Please clarify...

Regards

Prem Nautiyal


On Wed, 08 Dec 2010 12:30:02 +0530 wrote
>Dear All,





I've got a doubt on the following issue,



We're going to make an overlay with INCONEL 625 over SA 516 Gr. 70

(60mm thick) on its edge. But when we do the PQR for this the ferrite

content on this overlay is found to be 4%. Is there any standard

restricting this??? Because my client is asking for a max. of Ferrite

content of 3%.







Please Reply.







Regards



Akhil



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PREM S NAUTIYAL
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