The hardness of martensite in quenched plain carbon steels reaches almost a saturation value of carbon of about
A)0.20%
B)0.40%
C)0.60%
D)1.40%
E)None of the above

Question

Quizplus · Accepted Answer

The hardness of martensite in quenched plain carbon steels reaches almost a saturation value at about 0.60% carbon content, beyond which additional carbon does not significantly increase the hardness.

The Hardness of Martensite in Quenched Plain Carbon Steels Reaches