Metal molybdenum

Technical characteristics of molybdenum

The metal molybdenum is widely known as one of the alloying elements that has the property of increasing the strength of steels, as well as resistance to corrosion. It is quite technologically advanced, which greatly simplifies working with it. However, there is one disadvantage: alloying increases not only the strength of the metal, but also its brittleness. For a long time Japanese craftsmen have been using this metal for making edged weapons and also as a component for alloying corrosion-resistant and heat-resistant alloys. The refractory metal molybdenum has similar properties to tungsten. Melting point of molybdenum reaches more than 2600 ° C, boiling point - more than 4600 ° C, Brinell hardness - 125 N. As for molybdenum alloys, their main advantages are:

-excellent heat resistance;

-good heat resistance;

-Corrosion resistance (in particular in the acid environment);

-High indicators of specific strength.

Like other refractory metals molybdenum is characterized by low ductility at low temperatures, it can be attributed to the disadvantages of the material.

Physical properties of Mo

Molybdenum application

Production of heating elements for high-temperature vacuum furnaces, heat shields, heat guns. Products such as wire or tape are used in parts of furnaces operating at very high temperatures and are also used as current input paths in lamps. Molybdenum alloys are characterized by high elasticity, low expansion coefficient, resistance to temperature changes (so-called thermal shock) and a small thermal neutron capture cross-section. Molybdenum has slightly worse electrical current conductivity compared to copper, but better than iron. The strength of this material is slightly inferior to tungsten, but much easier to work with. Its strength and refractoriness enable it to improve markedly the performance of those alloys in which it is present.

Supplier

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