Noun
crude iron tapped from a blast furnace
Source: WordNetpig-iron
Your increasingly obsolete information industries would perpetuate themselves by proposing laws, in America and elsewhere, that claim to own speech itself throughout the world. These laws would declare ideas to be another industrial product, no more noble than pig iron. John Perry Barlow
According to his autobiography Bessemer was working with an ordinary reverberatory furnace but during a test, some pieces of pig iron were jostled off the side of the ladle, and were left above the ladle in the furnace's heat. Source: Internet
Alternatively pig iron may be made into steel (with up to about 2% carbon) or wrought iron (commercially pure iron). Source: Internet
Coke pig iron was hardly used to produce bar iron in forges until the mid-1750s, when his son Abraham Darby II built Horsehay and Ketley furnaces (not far from Coalbrookdale). Source: Internet
By 1915 twenty-five percent of the nation's foundry pig iron was produced in Birmingham. Source: Internet
Because pig iron could be melted, people began to develop processes of reducing the carbon in the liquid pig iron to create steel. Source: Internet