Pig Iron

The intermediate product of smelting iron ore with a high-carbon fuel such as coke, usually with limestone as a flux. Generally applied to a metallic product that contains over 90% iron. Typically it contains approximately 3% carbon, 1.5% silicon and lesser amounts of manganese, sulfur and phosphorus. Pig iron along with scrap metal is the base material for both cast iron and cast steel.

See also: Iron.

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Subjects: Chemistry