Question

Percentage of carbon content in steel varies from _________

(a) 0.25-1.50

(b) 2.00-4.00

(c) 3.00-4.50

(d) 2.50-3.50

The question was posed to me in final exam.

Origin of the question is Steel topic in portion Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

Answer 1

Correct choice is (a) 0.25-1.50

To explain I would say: Percentage of carbon content in steel varies from 0.25-1.50. Steel forms an intermediate stage between wrought iron and cast iron. Cast iron has carbon from 2-4 percent while in wrought iron the percentage of carbon content does not exceed 0.15.