Grey cast iron also known as flake graphite cast iron, is a type of casting iron in which most of the carbon
is present as flake graphite.The properties of grey cast iron depends on the distribution, sizes and amount of
graphite flakes, and the matrix structure. These factories are in turn, influenced mainly by the
manufacturing conditions, chemical composition, solidification time and rate of cooling in he mold.
Grey cast iron exhibit low to moderate strength, low modulus of elasticity, low notch sensitivity,
high thermal conductivity, moderate resistance of thermal stock , and outstanding capability.
SIMIS Casting. has many years of experiences to produce grey iron casting or gray cast iron. All of these
grey casting are used in the automobile industry: gear box body, pipeline system and so on. The normal
material of grey cast iron is the following: GG15, GG20, GG25.
