Q308
Hardness of steel depends on
A.
Amount of carbon it contains
AnswerB.
The shape and distribution of the carbides in iron
C.
Method of fabrication
D.
Contents of alloying elements
Answer: Option A
Solution
Answer: Option A
Solution:
Depending on the temperature and composition of the steel, it can be hardened or softened. To make steel harder, it must be heated to very high temperatures.
The final result of exactly how hard the steel becomes depends on the amount of carbon present in the metal.