Engineering Materials
Sulphur in cast iron

Aids fusibility and fluidity
Increases hardness and brittleness
Make the iron white and hard
Makes the iron soft and easily machinable

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Engineering Materials
A coarse grained steel

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

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