Question

Which of the following is not a property of hard steel?

(a) Hard steel can be readily forged and welded

(b) It rusts easily

(c) Hard steel can be magnetised permanently

(d) The specific gravity of hard steel is 7.90

This question was addressed to me in my homework.

This interesting question is from Steel in section Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

Answer 1

The correct choice is (a) Hard steel can be readily forged and welded

Best explanation: Hard steel has the following properties. Hard steel cannot be readily forged and welded. It rusts easily and can be magnetised permanently. The specific gravity of hard steel is 7.90.