In the entire world, almost all of the Iron Ore that is mined is used for making steel. Raw iron by itself is not as strong and hard as needed for construction and other purposes. So, the raw iron is alloyed with a variety of elements (such as tungsten, manganese, nickelm vanadium, chromium) to strengthen and harden it, making useful steel for construction, automobile, and other forms of transportation such as trucks, trains and train tracks, all sorts of machine parts. One can just imagine the life, in the absence of iron ore/steel.

In the entire world, almost all of the Iron Ore that is mined is used for making steel. Raw iron by itself is not as strong and hard as needed for construction and other purposes. So, the raw iron is alloyed with a variety of elements (such as tungsten, manganese, nickelm vanadium, chromium) to strengthen and harden it, making useful steel for construction, automobile, and other forms of transportation such as trucks, trains and train tracks, all sorts of machine parts. One can just imagine the life, in the absence of iron ore/steel.