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[MW:534] RE: 533] Filler metal for P 11 (O/L SS 347) to P8

By Materials & Welding

Is this vessel subjected to PWHT?

I assume it should be, also assuming it is a stub in type connection, then use ER347 + E347  for joining weld overlay portion to LWN (i.e inside weld of nozzle), and may use Inconel consumables ERNiCr3+ENiCrFe-2/3 for weld on ouside (i.e fillet joining P11 to F321 neck)

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Desai Jignesh
Sent: Tuesday, January 29, 2008 2:46 PM
To: materials-welding@googlegroups.com
Subject: [MW:533] Filler metal for P 11 (O/L SS 347) to P8

 

Dear Member,

 

Can some body give his/her opinion for filler metal of following condition?

 

Branch connection (Tube Side) between LWN flange (Material SA 182 F321) to SR Nozzle (SA 182 F11 CL 2 + Weld Deposit 347 SS).

 

Service is Hydrogen.

 

Operating Wall Temperature - Tube Side is IN 372 C & Out 225 C.

 

Also recommend the filler metal for the first layer of weld deposite.

 

Thanks in advance

 

Jignesh

 



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