M

Mr. Dubey • 52.30K Points
Coach 

Q. The surface hardness that can be obtained by nitriding is generally in the range

(A) 600 to 800 VPN
(B) Strength and hardness of steel is increased
(C) 400 to 600 VPN
(D) 1000 to 1100 VPN
Correct : Option (D)

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