Re: [MW:13152] Dissimilar welding SS 316 to A335GrP5

Dr.George,

 

How do check Ferrite number in Inconel welds. Is it by Magnetic method.

 

I suppose this could be done only by calculating the Dilution.

 

Does Ferrite number prevents Hot cracking in Inconel welds. What is the significance.

 

Thanks & Reagrds
 
J.Gerald Jayakumar
00968-93281596

From: "george.dilintas@gr.bureauveritas.com" <george.dilintas@gr.bureauveritas.com>
To: materials-welding <materials-welding@googlegroups.com>
Sent: Tuesday, December 6, 2011 2:34 PM
Subject: Re: [MW:13151] Dissimilar welding SS 316 to A335GrP5

Provided you do not get a FN lower than 5
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager

  From: james gerald [gerry_tup@yahoo.com]
  Sent: 06/12/2011 01:42 PST
  To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
  Subject: Re: [MW:13150] Dissimilar welding SS 316 to A335GrP5

It would be better to butter the P5 portion say 5 mm with ENiCrMo3, perform PWHT and weld it with 316SS .

 

Thanks & Reagrds
 
J.Gerald Jayakumar
00968-93281596

From: "george.dilintas@gr.bureauveritas.com" <george.dilintas@gr.bureauveritas.com>
To: materials-welding <materials-welding@googlegroups.com>
Sent: Tuesday, December 6, 2011 12:46 PM
Subject: Re: [MW:13149] Dissimilar welding SS 316 to A335GrP5

I would not suggest to direct them directly. What are your thicknesses?
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager

  From: "Ashok Raman B Kutty \(MNT/PPTSB\)" [ashokraman_kutty@petronas.com.my]
  Sent: 06/12/2011 09:27 ZE8
  To: <materials-welding@googlegroups.com>
  Subject: [MW:13145] Dissimilar welding SS 316 to A335GrP5

We need to weld a SS 316 Return bend to 5 Chrome, 0.5 Mo alloy steel furnace tube. The electrode proposed is ENiCrMo3. The return bends are in a header box adjacent to the radiant section (horizontal tube furnace – crude distillation unit).

 

Is PWHT required to be done after welding?

 

Thanks

 

Ashok

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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.