ferroniobium

Ferroniobium, also known as ferrocolumbium, is a crude alloy of iron and niobium. It is primarily used to add niobium to steel. Niobium itself is a refractory metal used in alloys, tools, and superconductive magnets. Ferroniobium is produced through an aluminothermic process, where niobium ore concentrates are reduced with iron ore and aluminum powder. This process yields an alloy containing approximately 62-69% niobium and 29-30% iron. Ferroalloys like ferroniobium are important for producing alloy steels, as they have lower melting ranges than pure elements, allowing for easier incorporation into molten steel to achieve specific compositions and properties.1234