The Difference Between Pure Iron And Other Steel

   The difference between pure iron, steel and pig iron mainly lies in the difference in carbon content.

   If the carbon content is more than 0.02%, it will become a low-carbon steel with low hardness that can be used to pull iron wires, roll thin white iron plates, etc. If the steel with a carbon content of 0.25% to 0.6% is called medium carbon steel, its hardness is medium, and it can be rolled into construction steel, steel plates, nails and other products.

   If the carbon content is 0.6% to 2.0%, it will become a high-hardness, high-carbon steel that can be used for making knives, dies, etc.

The combination of low, medium and high carbon steels is called “carbon steel”.

  If the carbon content exceeds 2.0%, it will become a hard and brittle cast iron pot, radiator, plow and other pig iron. The general pig iron carbon content is 3.5%-5.5%.

   Therefore, industrial pure iron is a kind of steel. Its chemical composition is mainly iron, with a content of 99.50%-99.90% and a carbon content of 0.04% or less.

  Because it is not actually pure iron, this kind of steel close to pure iron is called industrial pure iron.