Ferroboron (FeB) is a ferroalloy made up of iron and boron. It’s a magnetic binary iron alloy with a boron content of 17.5–20%. It’s used as an alloying agent in steels to improve hot workability, hardenability, creep resistance, and neutron absorption Ferroboron is the most economical boron additive for steel and other ferrous metals. It’s added to steel to improve its properties and used in producing amorphous metals. Ferroboron is also used in welding materials, spraying, and powder metallurgy.