Production and General information about niobium


Over 80% of extraction of niobium in the world is accounted for by Brazil. Rich deposits are found in Canada and Nigeria. For industrial production have a value of two major mineral is columbite and pyrochlore. The main difficulty lies in the separation of niobium from tantalum (compounds which have similar properties).

General information

Niobium is the 41st element on the periodic table of D. I. Mendeleev. This refractory metal with a silvery-grayish color. In industry, niobium is used both in pure form and as alloying component.

Chemical symbol Nb
The proportion 8,57 g/cm3
Melting point 2468 °C
Boiling point 4742 °C
The specific heat of fusion Of 26.8 kJ/mol
The latent heat of vaporization 680 kJ/mol
The degree of oxidation 5, 4, 3, 2, 1


  • good machinability;
  • corrosion resistance;
  • excellent weldability;
  • getter properties.

Supply, price

Are you interested in mining and General information about niobium? Company KMZ offers to buy niobium and its alloys at an affordable price in a optimally short period of time. The price matches the high quality of products. We invite you to partnership.

Buy, supplier

To by alloys of niobium provider KMZ can at an affordable price. The price is formed based on the European standards of production. The provider offers any rare earth metals at an affordable price wholesale or retail. Supplier KMZ offers any rare earth alloys under the order.

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