Question

Grey iron is usually welded by which welding..??

Answer 1

usually oxyacetylen welding is used to melt grey cast iron

Answer 2

The most common MMA filler rods are nickel, nickel - iron and nickel - copper alloys which can accommodate the high carbon dilution from the parent metal and produces a ductile machinable welddeposit. In MIG welding, the electrode wires are usually nickel or Monel but copper alloys may be used.