Dudy,
By and large Gray and nodular cast irons are weldable, NOT THE WHITE CAST IRONS.
The recommended electrodes for welding these two mentioned varieties are :- Pure -99% Nickel type, and 55 -45 Ni-Fe type . By and large a sustained preheat & interpass temperature control would be recommended - of the range 150-250 Deg C. Note cast iron can be only repaired,do not expect to have very high level of metallurgical integrity from this repair.
Please find the links below as useful guidelines.
Thanks
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Dudy Firdaus
Sent: Sunday, December 23, 2012 1:50 AM
To: materials-welding@googlegroups.com
Subject: [MW:16305] Welding for cast iron repair
Dear Experts,
Could you share me the best experiences regarding with welding for cast iron repair?
What in best process of welding and spec of the electrodes?
Highly appreciated for your help.
Thanks.
Kind Regards,
Dudy Firdaus
m: +62 85859020475 ; +62 81217149000
e: dudy.pfirdaus@yahoo.com.au
www.linkedin.com/pub/dudy-firdaus/1a/44/558
Sent from my Private BlackBerry®
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