Maximum change in the hardness of martensite 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

1 Answer

Answer :

(B) 0.2 to 0.4

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