Molybdenum is one of the few alloying elements which, when introduced in small quantities in the alloy, significantly increases strength and resistance to corrosion. This item is plastic. But when doped with increasing strength of the molybdenum increases the fragility of the alloys. It began to be used in ancient Japan for the production of knives. Modern metallurgy uses molybdenum as a basis for alloying heat-resistant and corrosion-resistant alloys. Wire, tape made from this material are used for heating elements in high temperature furnaces, output current in the light bulbs. Various compounds of molybdenum — sulfides, oxides, molybdates — are used as catalysts for the reactions of pigments. Molybdenum hexafluoride is used during the application of metallic Mo on various materials, MoS2 is used as a high temperature solid lubricant, and molybdenum disilicide — in heaters with the oxidizing atmosphere.
|The atomic number of Mo||Atomic (molar) mass, g/mol||The degree of oxidation||Density [g/cm3]||The melting temperature t°C||The boiling point of t°C||The heat of fusion kJ/kg|
|No. 42||96||2, 3, 4, 5, 6||10,22||2617°C||4612°C||28|
Molybdenum is rarely found in native form, sometimes in the composition of meteorites. Percentage of this metal in the earth’s crust does not exceed 4%. Molybdenum ore, usually very poor, which creates difficulties in the extraction process. Enrichment technology and production must be strictly observed at every stage, because otherwise the product may be a large amount of impurities. The oxidation of molybdenum greatly loses its strength.
Advantages of molybdenum
Heat resistance, very high elasticity, minimal coefficient of thermal expansion, a small capture cross section for thermal neutrons. The conduction of electrical current from molybdenum is lower than copper, but better than iron. According to the strength is slightly inferior to tungsten, but its easier to operate and handle pressure. In addition, the molybdenum, as mentioned above, quite strong and highly refractory, which allows it to improve the performance of alloys in which it is present.
Molybdenum is a valuable component in alloys for the automotive, aviation and space industry. Despite the low percentage of extraction of molybdenum, the use of his metallurgy is growing rapidly every year. Most of the mined molybdenum is used for alloying additions to the alloys of cast iron or steel. Molybdenum compounds have found application in glass making and ceramic production. On our site you can familiarize with the prices for molybdenum and other refractory metals.
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OOO «Electrocentury-steel» implements a wide range of high-temperature metal based on molybdenum. Our offices are located in Russia and Ukraine. You can make a purchase without leaving the office, through the Internet website of the Company. Processing complete each stage of production allows to fulfill individual orders, if the underlying performance of products you are not satisfied. We perform quality orders for non-standard settings, deadlines minimum. When wholesale purchases discounts are available.