How To Weld Cast Iron Steel. First usually you are doing a repair job or a retrofit if you are asking about welding cast iron to steel so be sure to. If you cant preheat the whole part try to at least warm the weld area up to 100 degrees.
Preheating or cold weld. If a job requires cast iron to be welded to mild steel stick welding is a great method to do so. Grind down to the bottom of the crack.
To maintain a nice weld use the MIG welder to maintain the lowest feed rate and the lowest current.
Yes cast iron can be welded to steel. Thoroughly clean the surface to be welded grind file dress and dry. Oxy-acetylene welding is another option frequently used to weld cast iron. The spatter from MIG or stick welding may unnecessarily damage parts of the machined surface not being welded.