Question: Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel.
[A].0.01 to 0.10
0.2 to 0.4
0.5 to 0.7
0.8 to 1.0
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.