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 less 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

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Engineering Materials
Grey cast iron

Is produced by annealing process. I is soft, tough and easily machined metal
Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable
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 o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

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Engineering Materials
The temperature required for full annealing in hypereutectoid steel is

30° C to 50° C above lower critical temperature
30° C to 50° C below lower critical temperature
30° C to 50° C below upper critical temperature
30° C to 50° C above upper critical temperature

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