Pig iron is an intermediate outcome obtained from a smelting\iron ore in a blast furnace. It is an amalgamation of 92% iron, up to 3.5% carbon, and fragments of manganese, silicon, sulfur, phosphorus, and impurities.
The traditional shape of the modulus used for pig iron ingots was a branching structure formed in sand, with many individual ingots at right angles to a central channel or runner, resembling a litter of piglets being suckled by a sow. When the metal had cooled and hardened, the smaller ingots (the pigs) were simply broken from the runner (the sow), hence the name pig iron.
Pig iron has limited applications but support in diversified fields. The features of pig iron are as follows:
Pig iron is known for its high carbon content, which makes it brittle while pure iron has a low content of carbon and minor level of impurity, contributing to the strength of the metal. It has a lower melting point in comparison to steel and iron which also helps produce a low-grade iron, named grey iron.
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