Re: [MW:10787] Reg:filler wire for dissimilar material

Dear Sir,

 

These two type of material are PNo.5B & PNo.8 Right!!!!!

to weld this material first you have to make battering layer on PNo.5B uosing filler metal

E FeNiCr-3 with process SMAW After that you will make PWHT for PNo.5B and the battering layer.

After that you can use E309 electrode to PNo.8 to the battering layer without PWHT.

Best Regardes,

 
 

Eng:- Elsayed Elghareeb.
Dipl. Welding Engineer.
DSD-FERROMETALCO.
+2 010 82 61 645.

 

On Thu, Apr 21, 2011 at 11:18 AM, venkat kumar <vsslsrk@gmail.com> wrote:

dear experts,

good day all of you.

i need your valuable help: 

which filler wire we can use for dissimilar metals in heater piping

1. ASTM A335 Gr. P9 (9 Cr,1 Mo ) half coupling to ASTM A 240 Gr 310 plate fillet weld.

2. ASTM A335 Gr. P9 (9Cr, 1 Mo ) coil  to ASTM A 351 Gr.HK 40 plate

PL suggest me

thanks & regards

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