Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel.

Maximum change in the hardness of mar tensite occurs in the carbon con

1.	Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel.
A.	0.01 to 0.10
B.	0.2 to 0.4
C.	0.5 to 0.7
D.	0.8 to 1.0
Answer» C. 0.5 to 0.7

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Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel.

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