How To Weld Cast Iron To Carbon Steel. Cast iron can be welded with mild steel wire. View Cast Iron Stick Electrodes.
The equivalent carbon content concept is used on ferrous materials typically steel and cast iron to determine various properties of the alloy when more than just carbon is used as an alloyant which is typical. You will more likely than not end up with Martensite weak and non machinable hard. Identify The Alloys Cast irons are a branch of the iron-carbon alloy tree and they tend to have high carbon substance.
Generally gears are fixed to their shafts by means of a key.
If you cant preheat the whole part try to at least warm the weld area up to 100 degrees. Welding cast iron has two schools of thought one is hot and the other is cold welding. You will more likely than not end up with Martensite weak and non machinable hard. Because of the lower melting point of the filler compared to the cast iron the filler does not dilute with the cast iron but adheres to the surface.