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Molybdenum is a frequent component of the special alloys required for modern electrical engineering, automotive industry, aerospace and aviation industry. Low percentage of this metal in the earth’s crust becomes a serious difficulty when mining. It is not found in the native form. Despite a small percentage of the production of molybdenum, this ratio is gradually increasing every year, and the price falls. A large part of the mined molybdenum is used as alloying additives to heat-resistant steel alloys.


Molybdenum is widely known as one of the alloying elements, have the property to increase durability and resistance to corrosion. It is quite malleable and ductile, which greatly simplifies the work with him. However, there is one drawback — when doping increases not only the strength but also fragility. Japanese masters have long used this metal for the manufacture of bladed weapons, and also as an ingredient in alloying, corrosion-resistant, heat-resistant alloys.

The alloys of molybdenum have high rates of elasticity, low coefficient of expansion, resistance to extremes temperatures (called thermal shock) and a small capture cross section for thermal neutrons. Molybdenum has a conductivity of electric current slightly worse than copper, but better than iron. On the strength of this material is slightly inferior to tungsten, but is much easier to handle. Strength and refractoriness allows him to significantly improve the performance of alloys in which it is present.

Physical quality Mo
The temperature at which the obtained data the features of t°C 20°C
The linear thermal expansion coefficient α [1/°C] Of 4.9x10-6
Density [g/cm3] 10,2
The melting temperature t°C 2620°C
Specific heat at 20 °C [kJ/(kg·deg)] 0,256
The thermal conductivity K [W/(m·K)] 142
Electrical resistivity R, Mhmm2/m 0,054


Manufacture of heating elements of high temperature vacuum furnaces, heat insulators of heat. Such products as wire or tape, is used to create furnaces that operate at very high temperatures, as well as the I / o path of the current in the lamps. Various compounds — the oxides, sulfides, molybdates — are used as catalysts of reactions, pigments dyes. Hexafluoride MoF6 is used for the application of metallic Mo on various materials, MoS2 is used as a high temperature solid lubricant. Mo is also part of various micronutrients.

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