TYPES OF CAST IRON:
ALLOY CAST IRON: This
term designates castings containing alloying elements such as nickel,
chromium, molybdenum, copper, and manganese in sufficient amounts to
appreciable change the physical properties. These elements may be added
either to increase the strength or to obtain special properties such as
higher wear resistance, corrosion resistance, or heat resistance. Alloy
cast irons are used extensively for such parts as automotive cylinders,
pistons, piston rings, crankcases, brake drums and for certain machine
tool castings.
Z1022
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