Cast iron is a material that is made up of between 2-6% carbon and 94-98% iron. It is most commonly used due to its properties of being very strong whilst also being brittle. These properties have made it the first choice material in production of a range of things including engine blocks, antique style fireplaces, cooking pots and manhole covers.
Cast iron existed years before steel and was widely used prior to steel invention. Now that steel exists and there are limitless possibilities of material’s properties due to alloys, cast iron is not as favoured as it used to be.
Cooking utensils such as frying pans are now the most common use of cast iron in the home.