Welding Cast Iron Drain Pipe. So if you want your pipes up to code look for a fix that starts with Bro. Use the putty knife to fill the hole with cast-iron patching compound.
When preparing the edges for welding chipping off the cast iron rather than grinding will. The repairs may be made in the foundry where the castings are produced or may be made to repair casting defects that are discovered after the part is. Cast iron is difficult but not impossible to weld.
Welding-cast-iron is not suitable by Friction Welding a solid state process with lower than melting temperature because cast iron contains graphite which interferes with heating and because the material is not forgeable which is a pre-condition for the process.
This type of adhesive typically includes two separate tubes. You might get by with a 7018 if it doesnt crack after welding but a nickel based rod specifically for cast iron is what you would need to use. Welding-cast-iron is not suitable by Friction Welding a solid state process with lower than melting temperature because cast iron contains graphite which interferes with heating and because the material is not forgeable which is a pre-condition for the process. Broken cast iron parts are not unusual given the brittle nature of most cast iron.