Iron vanadium is an iron alloy composed of vanadium and iron, mainly used as an alloy additive in steelmaking, and high vanadium iron vanadium is also used as an additive for non-ferrous alloys. There are three commonly used vanadium iron containing vanadium 40%, 60% and 80%. Iron vanadium is an important alloy additive in iron and steel industry. At present, the application range of vanadium steel is more and more wide.
Alloys such as vanadium and titanium are used in the production of aviation alloy materials (bars and plates) series products, and the annual consumption of vanadium is about 50 tons. Vanadium-nitrogen alloy is a new alloy additive, which can be used in the production of microalloyed steel instead of iron vanadium. The addition of vanadium nitride to steel can improve the comprehensive mechanical properties such as strength, toughness, ductility and thermal fatigue resistance, and make the steel have good weldability.
In the chemical industry, vanadium metal has many applications. First, vanadium compounds are used as catalysts for the manufacture of sulfuric acid and vulcanized rubber, but also to inhibit nitrous oxide production in power plants. In addition, vanadium is also used in ceramic colorants, developer and desiccant. Of special mention is the all-vanadium flow battery, which is a new type of clean energy storage device that uses a solution of vanadium ions of different valence states as the active substance of the positive and negative electrodes, and converts the chemical energy stored in the solution into electrical energy through an electrochemical reaction. This kind of battery has the advantages of large power, large capacity, high efficiency and long life, and is the preferred choice of energy storage equipment for solar and wind power generation devices.
About 85% of the metal vanadium is added to steel production in the form of iron vanadium and vanadium nitrogen alloys to improve the strength, toughness, ductility and heat resistance of steel. High strength alloy steel containing vanadium is widely used in the production and construction of oil/gas pipelines, buildings, Bridges, steel rails, etc. High strength alloy steels containing vanadium mainly include: High strength low alloy (HSLA) steel (comprehensive); HSLA steel plate; HSLA steel; HSLA strip steel; Advanced high strength strip steel; Threaded steel bars for construction; High carbon steel wire; Steel rails; Tools and die steel, etc.
