Ferrovanadium

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iron alloy

Ferrovanadium is a kind of ferroalloy, which can be obtained by reducing vanadium pentoxide with carbon in electric furnace, or by reducing vanadium pentoxide with silicon thermal method in electric furnace. It is widely used as an element additive in the smelting of vanadium-bearing alloy steel and alloy cast iron, and in recent years it has also been used to manufacture permanent magnets. There are V401, V402 and other kinds of ferrovanadium produced in China, which contain about 40% of vanadium.

It is mainly used for smelting alloy steel. About 90% of the vanadium consumed in the world is used in iron and steel industry. Vanadium is mainly used to refine grain size, increase strength of steel and restrain aging effect in common low alloy steel; refine grain size and increase strength and toughness of steel in alloy structural steel; use it in spring steel with chromium or manganese to increase elastic limit of steel and improve its quality; refine structure and grain of steel in tool steel, increase tempering stability of steel, and enhance second. Secondary hardening improves wear resistance and prolongs service life of tools; vanadium also plays a beneficial role in heat-resistant and hydrogen-resistant steels; vanadium added to cast iron promotes pearlite formation due to carbide formation, stabilizes cementite, fines and uniforms the shape of graphite particles and refines the grain size of matrix, thus improving the hardness, tensile strength and wear resistance of castings.

A ferroalloy used in iron and steel industry. Its main components are vanadium and iron. It also contains impurities such as sulfur, phosphorus, silicon and aluminium.

 

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