Question

major content of steel other than iron

Answer 1

The carbon content of steel is between 0.002% and 2.14% by weight for plain iron–carbon alloys. These values vary depending on alloying elements such as manganese, chromium, nickel, iron, tungsten, carbon and so on. ... Carbon contents higher than those of steel make a brittle alloy commonly called pig iron.

Answer 2

Carbon is major content of steel other than iron