An open-hearth furnace or open hearth furnace is any of several kinds of industrial furnace in which excess carbon and other impurities are burnt out of...

into steel in less than 40 minutes, compared to 10–12 hours in an open hearth furnace. The basic oxygen process developed outside of the traditional "big...

furnace Induction furnace Open hearth furnace Puddling furnace Reverberatory furnace Furnace, Argyll, Scotland, a village Furnace, Carmarthenshire, Wales...

reverberatory furnace or open hearth furnace. The major advantage of this system is keeping the impurities of the fuel separated from the charge. The hearth is where...

furnace and production of crucible steel. This was followed by the Bessemer process in England in the mid-19th century, and then by the open-hearth furnace...

The AJAX furnace was a modification of the tilting open hearth furnace that used blown oxygen to improve productivity. The process was used in the UK...

production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation...

mills. In the 20th century, the US industry successively adopted the open hearth furnace, then the basic oxygen steelmaking process. Since the American industry...

interchangeable parts, as well as the invention of the Bessemer process and open hearth furnace to produce steel, later developments harkened the Second Industrial...

prefix "C" denotes open-hearth furnace, electric arc furnace or basic oxygen furnace steels, while "E" specifies only electric arc furnace steel. A letter...