pig iron


pig iron

noun

Definition of PIG IRON

:  crude iron that is the direct product of the blast furnace and is refined to produce steel, wrought iron, or ingot iron

First Known Use of PIG IRON

1665

pig iron

noun    (Concise Encyclopedia)

Crude iron obtained directly from the blast furnace and cast in molds (see cast iron). The crude ingots, called pigs, are then remelted along with scrap and alloying elements and recast into molds to produce various iron and steel products (see Bessemer process, finery process, puddling process).

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