Construction material
Hardware tools
airplane jet rockets (jet)

Its more important compounds are the pentoxide, raw-material used in the production of most of the other ones, and the ammonia metavanadate, which is used as catalyst in the chemical industry, for producing sulfuric acid. It can also form alloys, in particular with the iron, to improve its mechanical properties and strength. The alloy made with aluminum is useful in prepararing of several others, such as titanium, vanadium and aluminum, used in the aeronautical industry.