Annealing is performed to improve machinability and make steel more workable.

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Multiple Choice

Annealing is performed to improve machinability and make steel more workable.

Explanation:
Annealing softens steel by heating it to a suitable temperature and cooling slowly, which lowers hardness and increases ductility. This softness and ductility make the material easier to machine and form, improving machinability and workability. The notion that annealing increases hardness isn’t correct—the process reduces hardness. Saying it completely relieves residual stresses isn’t always true, as some stresses can remain or be reintroduced later. And the idea that it reduces ductility is opposite to what annealing does, since ductility actually increases.

Annealing softens steel by heating it to a suitable temperature and cooling slowly, which lowers hardness and increases ductility. This softness and ductility make the material easier to machine and form, improving machinability and workability. The notion that annealing increases hardness isn’t correct—the process reduces hardness. Saying it completely relieves residual stresses isn’t always true, as some stresses can remain or be reintroduced later. And the idea that it reduces ductility is opposite to what annealing does, since ductility actually increases.

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