This product is mainly used for alloying purposes. Powder metallurgy is practically not used to produce compact metal.
On the website of the company Metotechnics you can buy vanadium powder. Ordering via the site is available on the page with prices. Besides, the request via email and phone will be processed by our managers within shortest time.
More information about the grades, production methods and application areas of this product is provided on this page in the appropriate sections.
Grades
Vanadium powder is a high purity metal and is produced under three grades with different amounts of impurities: VEL-1, VEL-2 and VEL-3. The mass fraction of V is 99.84%, 99.68% and 99.61%, accordingly. The content of impurities is very small, among the most weighty are iron (Fe), nickel (Ni) and oxygen (O). Their share is up to 0.1%, depending on the specific grade.
The chemical composition and marking of the described products are presented in the technical conditions 48-4-335-86 and 14-22-124-99.
Production
Vanadium powder can be obtained in two ways: by electrolytic or reduction. Both methods get a pure V. In the first case, the separation of vanadium occurs as a result of electrolysis - the passage of an electric current through a vanadium containing solution with the deposition of pure metal at the cathode. In the second approach, when a chemical element (reductant) is added to a vanadium compound, a chemical reduction reaction occurs, resulting in the formation of a pure metal and byproducts.
Electrolytic vanadium in the form of powder is a dendrite like splices of crystals mixed with small crystals (dendrite is a complex crystal formations of a tree-like branching structure). In appearance, it differs slightly from similar products of other metals (for example, tungsten, nickel powder) because of the specific shape of the grains.
Particle sizes, bulk density, delivery status and other technological parameters of products must meet the requirements of regulatory documents: the technical conditions 48-4-335-86 and 14-22-124-99.
In some cases, powder products that have a small grain size are called vanadium dust.
Application
The main applications of vanadium powder include:
production of compact vanadium;
alloying of steels and alloys.
In the first case, vanadium bars are sintered using powder metallurgy methods. They serve as raw materials for further processing into standard industrial semi-finished products - rods, wire, pipes, flat bars, sheets and other types of round and flat rolled products. However, as a rule, vanadium ingots obtained by cathode-ray melting are used for the described purposes. The second direction involves adding pure V to alloys to improve certain properties. For these purposes, ferrovanadium is also used, but usually for alloying cast iron and steel (ferrous metallurgy).
An example of the use of vanadium powder in alloying is the production of magnetic alloys. These include iron and cobalt alloys permendur and supermendur. The introduction of V to them provides increased strength, plasticity and electrical resistance. Alloys of the cobalt-iron-chromium system under the general name vikalloy, in which vanadium facilitates their heat treatment, increases plasticity and significantly increases the coercive force. The coercive force is the value of the magnetic field strength required for complete demagnetization of a ferro- or ferrimagnetic substance. The unit of measurement in the International system of units (SI) is ampere/meter. The more coercive force a magnet has, the more resistant it is to demagnetizing factors.
Permendur is a magnetically soft alloy used in the production of electromagnet tips and other devices. Vikalloy is a magnetically hard alloy used for small sized permanent magnets and the active part of the rotors of hysteresis motors.
Prices
The cost of vanadium powder is presented on the Cost page. There is also a product range of available grades.