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pig iron

American  

noun

  1. iron tapped from a blast furnace and cast into pigs in preparation for conversion into steel, cast iron, or wrought iron.

  2. iron in the chemical state in which it exists when tapped from the blast furnace, without alloying or refinement.


pig iron British  

noun

  1. crude iron produced in a blast furnace and poured into moulds in preparation for making wrought iron, steels, alloys, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of pig iron

First recorded in 1655–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In 1878, confronting the lowest prices for pig iron since colonial times, American ironmasters wondered if the smokestacks on their idled blast furnaces might serve a higher use as astronomical observatories.

From The Wall Street Journal May 29, 2026

Other sectors included pig iron production at 12%, with cement, road freight transport, and private power generation each covering 7% of total emissions.

From Science Daily May 15, 2024

A third stream comes when the resulting pig iron is turned into steel by cooking it a bit further—baking off most of the remaining carbon—and alloying it with additives such as chromium or titanium.

From Science Magazine Apr. 30, 2024

The vessels were carrying pig iron and iron concentrate.

From Reuters Sep. 3, 2023

The Congolese pirogues are made of a dense wood that sinks like pig iron when given half a chance.

From "The Poisonwood Bible" by Barbara Kingsolver

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