Engineering Materials
Malleable cast iron

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron
Is produced by small additions of magnesium (or cerium) in the ladle. Graphite is in the nodular or spheroidal form and is well dispersed throughout the material
Is also known as chilled cast iron and is obtained by cooling rapidly. It is almost unmachinable
Is produced by annealing process. It is soft, tough, and easily machined metal

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Engineering Materials
Nickel in steel

Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Gives ductility, toughness, tensile strength and anti-corrosion properties
Improves wear resistance, cutting ability and toughness
Improves cutting ability and reduces hardenability

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Engineering Materials
A coarse grained steel

Is less tough and has a greater tendency to distort during heat treatment
Is more ductile and has a greater tendency to distort during heat treatment
Is less tough and has a less tendency to distort during heat treatment
Is more ductile and has a less tendency to distort during heat treatment

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