Niobium is a shiny, grey transition metal represented by the symbol Nb. It is strong, corrosion-resistant, and has a high melting point.

Niobium is mainly used in steel alloys to make them stronger and more heat-resistant. These alloys are used in pipelines, bridges, jet engines, and spacecraft. Niobium is also used in superconducting magnets, which are important in MRI machines and scientific research.