ferroboron

Ferroboron is a master alloy primarily composed of iron and boron. It typically contains between 10% and 24% boron, with the remainder being iron. Other elements may be present in smaller quantities as impurities or intentional additions. Ferroboron is produced by carbothermic reduction of boron oxides with iron and carbon sources in an electric arc furnace. The boron content influences its physical properties, generally increasing hardness and brittleness.

The primary application of ferroboron is as an additive in steelmaking and other ferrous alloys. Even small additions of ferroboron, often in the range of parts per million, can significantly alter the properties of steel. It is used to improve hardenability, particularly in low-alloy steels, allowing for greater depth of hardening during heat treatment. Ferroboron also acts as a grain refiner in some steel grades, leading to improved mechanical properties. In certain specialty steels, it can contribute to wear resistance and neutron absorption capabilities. Beyond steel, ferroboron finds limited use in other metallurgical applications where boron's properties are beneficial. Its production and use are integral to the manufacturing of various high-performance materials.