What is pig iron?

  • (noun): Crude iron tapped from a blast furnace.

Pig Iron

Pig iron is the intermediate product of smelting iron ore with a high-carbon fuel such as coke, usually with limestone as a flux. Charcoal and anthracite have also been used as fuel. Pig iron has a very high carbon content, typically 3.5–4.5%, which makes it very brittle and not useful directly as a material except for limited applications.

Read more about Pig Iron.

Some articles on pig iron:

Science And Technology Of The Han Dynasty - Metallurgy - Furnaces and Smelting Techniques
... A blast furnace converts raw iron ore into pig iron, which can be remelted in a cupola furnace to produce cast iron ... The earliest specimens of cast iron found in China date to the 5th century BCE during the late Spring and Autumn Period, yet the oldest discovered blast. 141–87 BCE) established a government monopoly over the iron industry in 117 BCE (most of the discovered iron works sites built before this date were ...
Pig Iron (disambiguation)
... Pig iron can refer to Pig iron, an intermediate form of iron produced from iron ore and is subsequently worked into steel or wrought iron Pig Iron - The Album by Anti-Nowhere League Pig Iron ...
History Of The Steel Industry (1850-1970) - 19th Century Trends - Technology
... swords, tools and cutlery all large metal structures were made of wrought or cast iron ... In the Bessemer process, molten pig iron is converted to steel by blowing air through it after it was removed from the furnace ... The air blast burned the carbon and silicon out of the pig iron, releasing heat and causing the temperature of the molten metal to rise ...
Lackawanna Steel Company - Founding and Early Years
... Lackawanna Valley in Pennsylvania was rich in anthracite coal and iron deposits ... town of Slocum's Hollow (now Scranton) to establish an iron forge ... The Scrantons focused instead on manufacturing pig iron using a blast furnace ...
Pig Iron - Uses - Modern Uses
... Today, pig iron is typically poured directly out of the bottom of the blast furnace through a trough into a ladle car for transfer to the steel mill ... Modern steel mills and direct-reduction iron plants transfer the molten iron to a ladle for immediate use in the steel making furnaces or cast it into pigs on a pig-casting machine ... Modern pig casting machines produce stick pigs, which break into smaller 4–10 kg pieces at discharge ...

Famous quotes containing the words iron and/or pig:

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    Billie Holiday (1915–1959)

    Twelve voices were shouting in anger, and they were all alike. No question, now, what had happened to the faces of the pigs. The creatures outside looked from pig to man, and from man to pig, and from pig to man again; but already it was impossible to say which was which.
    George Orwell (1903–1950)