Gray cast iron is a type of cast iron. Carbon exists in the form of flake graphite in cast iron. The fracture is gray in color. Has good casting and cutting performance, and good wear resistance. Used for manufacturing racks, enclosures, etc. Gray cast iron graphite is in the form of flakes, with a relatively small effective bearing area. The graphite tip is prone to stress concentration, so the strength, plasticity, and toughness of gray cast iron are lower than other cast irons. But it has excellent vibration damping, low notch sensitivity, and high wear resistance.
