OPEN-HEARTH STEEL

OPEN-HEARTH STEEL Open-hearth steel.

open-hearth

o pen-hearth ▶adjective denoting a steelmaking process in which the charge is laid on a hearth in a shallow furnace and heated by burning gas.

open-hearth process

open-hearth pro |cess ▶noun a steel-making process in which scrap iron or steel, limestone, and pig iron are melted together in a shallow reverberatory furnace, the mixture being heated from above using gaseous fuel and air which oxidizes impurities in the iron.

open-hearth

o pen-hearth ▶adjective denoting a steelmaking process in which the charge is laid on a hearth in a shallow furnace and heated by burning gas.

open-hearth process

open-hearth pro |cess ▶noun a steel-making process in which scrap iron or steel, limestone, and pig iron are melted together in a shallow reverberatory furnace, the mixture being heated from above using gaseous fuel and air which oxidizes impurities in the iron.