Question

Define and distinguish between hardness and hardenability of steel, outlining the factors that influence each of these

Answer 1

Hardness is the resistance to identation. Practically, higher the hardness, higher will be the wear resistance, scratch resistance, etc. The tensile strength of the material will also increase linearly with hardness.

Hardenability is specific to Steels alone - it is a measure of how much hardness increase will happen during quenching (a very common heat treatment).

I Hope it is clear for you.

Thank You

[Prakash Roy]

Expert!!!!