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Ferro Vanadium
Product description
Ferrovanadium is an iron alloy whose main components are vanadium, iron, and also contains impurities such as sulfur, phosphorus, silicon, and aluminum. Ferrovanadium is obtained by reducing vanadium pentoxide with carbon in an electric furnace, and can also be obtained by reducing vanadium pentoxide by electric furnace silicon thermal method. It is widely used as an additive for smelting vanadium-containing alloy steel and alloy cast iron.
Product introduction
Specification
Grade | Chemicals(%,≥,≤) | |||||
V | C | Si | P | S | Al | |
≤ | ||||||
FeV40-A | 38.0-45.0 | 0.60 | 2.0 | 0.08 | 0.06 | 1.5 |
FeV40-B | 38.0-50.0 | 0.80 | 3.0 | 0.15 | 0.10 | 2.0 |
FeV50-A | 48.0-55.0 | 0.40 | 2.0 | 0.06 | 0.04 | 1.5 |
FeV50-B | 48.0-55.0 | 0.60 | 2.5 | 0.10 | 0.05 | 2.0 |
FeV60-A | 58.0-65.0 | 0.40 | 2.0 | 0.06 | 0.04 | 1.5 |
FeV60-B | 58.0-65.0 | 0.60 | 2.5 | 0.10 | 0.05 | 2.0 |
FeV80-A | 78.0-82.0 | 0.15 | 1.5 | 0.05 | 0.04 | 1.5 |
FeV80-B | 78.0-82.0 | 0.20 | 1.5 | 0.06 | 0.05 | 2.0 |
Size and Package
Ferrovanadium is delivered in block or granular.
Package: in 250 kg steel drums
Please note that the chemical composition, size and packaging of the above products can be customized according to customers' requirements.
Performance and Features
Commonly used iron vanadium has three kinds of vanadium containing 40%, 60% and 80%. The main raw material for the production of ferrovanadium in China is vanadium-titanium magnetite.After beneficiation, vanadium-containing pig iron is smelted through a blast furnace, vanadium slag is extracted in the atomizing furnace or converter blowing process. After vanadium slag is crushed, sodium salt is added for sodium oxide roasting to make vanadium soluble sodium metavanadate (NaVO3). After leaching and purification, ammonium sulfate is added to precipitate polyvanadate Ammonium [(NH4)2V6O16]. Then it is melted by deamination and cast into flake vanadium pentoxide.
Applications
Ferrovanadium is mainly used for smelting alloy steel. For example, it is widely used in spring steel, bearing steel and cast iron. Refined in an electric furnace, various compounds of vanadium are widely used as catalysts in the chemical industry. Vanadium is widely used in the steel industry because vanadium can form stable carbides with the carbon in the steel. It can refine the structure and grains of the steel and increase the temperature of grain coarsening. Therefore, the addition of a small amount of vanadium in the steel can significantly improve the performance of the steel, greatly improve the strength, toughness, wear resistance, impact load resistance and corrosion resistance of the steel, increase the tempering stability of the steel, and enhance the secondary hardening, improve its wear resistance, and extend the service life of the tool. Vanadium added to the cast iron promotes the formation of pearlite due to the formation of carbides, which stabilizes cementite, makes the shape of the graphite particles fine and uniform, and refines matrix crystal, increasing the hardness, tensile strength and wear resistance of the casting.