Welding Of Cast Iron With Carbon Steel. However its used to weld cast iron and produces a machinable surface. I know that I have done it well over a hundred times and most ornamental companies I know that are not a joke do this.
Medium carbon steel may be welded by the following welding processes. Cast iron and cast carbon steel may look like cast iron but metallurgy is different. Steel shrinks more than cast iron when cooled.
However there are a few things you want to remember when welding cast iron to steel.
Go with a nickel rod if youre arc welding. When welding cast iron its important to account for. When a steel electrode is used this uneven shrinkage will cause strains at the joint after welding. Being brittle by nature carbon contained in the mixture causes the metal to shrink and crack when heated past a certain temperature.