Hardness of steel depends on________?
Acontents of alloying elements
Bmethod of fabrication
Camount of carbon it contains
Dthe shape and distribution of the car-bides in iron
Ethe quality of ore from which it is made
Correct answer
D. the shape and distribution of the car-bides in iron
Explanation
The correct answer is the shape and distribution of the car-bides in iron.