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Niobium and niobium alloy have high strength at high temperatures and have a relatively smaller density than other high-temperature and high-strength metals such as tungsten and tantalum. They are easy to process and form, so they are often used as key components of rocket engines.

Niobium has a high superconducting transition temperature. Superconducting materials such as niobium titanium, niobium tin, and niobium aluminum germanium are not only used for power transmission, power generation, manufacturing superconducting magnets, and controlling nuclear fusion, they are also used in navigation devices in spacecraft, high-speed Electromagnetic propulsion equipment for diving vessels and superconducting high-speed trains, etc.

Niobium has good corrosion resistance and can be used as heat exchangers, condensers, filters, mixers, etc. Niobium carbide can be used alone or in combination with tungsten carbide and molybdenum carbide for hot forging dies, cutting tools, jet engine turbine blades, valves, tail skirts and rocket nozzle coatings.

Niobium-containing alloy steel has high strength, good toughness, and resistance to cold quenching, and can be widely used in oil pipelines.