Molybdenum — one of the few alloying elements which, when introduced in small amounts in the alloy substantially increases strength and resistance to corrosion. This element is quite ductile. But doping — with an increase in the strength of molybdenum increases the fragility of the alloys. He started to use more in ancient Japan for the production of knives. Modern metallurgy using molybdenum as a base by doping resistant and corrosion-resistant alloys. Wire, tape made from this material are used for high-temperature furnace heating elements, ways of output current in the lamp. Various compounds of molybdenum — sulfides, oxides, molybdates — are used as catalysts in reactions pigments. Molybdenum hexafluoride is used for applying metallic Mo on a variety of materials, the MoS 2 is used as a solid high temperature grease and molybdenum disilicide — in heaters with an oxidizing atmosphere.
|Mo atomic number||The atomic (molar) mass g / mol||The degree of oxidation||Density [g / cm3]||Melting point t ° C||The boiling point of t ° C||The heat of fusion kJ / kg|
|number 42||96||2, 3, 4, 5, 6||10.22||2617 ° C||4612 ° C||28|
Molybdenum is rare in the native form, and sometimes — in the composition of meteorites. The percentage of the metal does not exceed 4% in the crust. Molybdenum ore is usually very poor, which creates difficulties in the extraction processing. Enrichment technology and metal production must be strictly followed at each stage, as otherwise the product may be a large amount of impurities. The oxidation of molybdenum significantly loses its strength.
Advantages of molybdenum
Heat resistance, a very high rate of elasticity, minimal thermal expansion coefficient, low thermal neutron capture cross section. Conduction of electrical current from molybdenum is lower than that of copper, but it is better than that of iron. According to the strength of it is slightly inferior to tungsten, but it is easier to operate and handle the pressure. Furthermore, molybdenum, as mentioned above, quite durable and highly refractory, allowing it to improve their performance alloys in which it is present.
Molybdenum is a valuable component in alloys for the automotive, aviation and space industry. Despite the small percentage of molybdenum production, the rate of use of its steel industry is growing rapidly every year. Most of all mined molybdenum is used for alloying additions to the cast iron or steel alloys. Molybdenum compounds have been used in glass and ceramic manufacture. On our site you can familiarize with the prices for molybdenum and other refractory metals.
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LLC «Electrovek-steel» sells a wide range of heat-resistant metal-roll based on molybdenum. Our offices are located in Russia and Ukraine. Making a purchase is possible, without leaving the office, through the Company’s website. Technological equipment for each stage of production allows for individual orders, if the basic version product does not satisfy you. We make quality custom orders parameters, terms of their implementation are minimal. When wholesale purchases discounts.