We are specialists in semi-finished steel and metal products, as well as standard parts. We have a wide range of products in our large warehouse located in Europe which is constantly growing and is designed according to high quality standards.

We sell all over Europe, tantalum and other refractory metals. We ship within 24 hours for whole Europe. Fast and uncomplicated deliveries.

We sell countless flat, round and square steels and precision tools with various dimensions and profiles.


Purchase refractory metals such as rhenium, molybdenum, copper, brass, bronze, aluminum, osmium, ruthenium, iridium, rhodium, palladium, tantalum, titanium, platinum, nickel alloys, pure tungsten, niobium, silver and composite metals and gold.

We work together with more than 10,000 clients from the mechanical engineering, tool manufacturing, mold manufacturing, cabinet construction, factory building and metal structures industries.


Tantalum is one of the metals of high melting point, is very resistant to acids (except hydrofluoric acid). It is very hard, elastic and well deformable. It's a weldable metal.

Industrial applications: Electrical and chemical engineering, in the construction of high temperature furnaces, in evaporation plants, in nuclear technology. Tantalum is added as an alloying constituent for rust and acid resistant steels. Tantalum carbide is also used for the production of carbide.

We can manufacture for the following forms:

  • Drawing parts (in 3D data);

  • Round and flat bars;

  • Blocks;

  • Sheets / strips / tapes;

  • Sketches;

  • Cables;

  • Tubes.


Symbol: Ta
Atomic number: 73
Atomic Weight: 180.9479
Element Category: transition metal
Group, period, block: 5, 6, d
Color: blue gray
Other names: Tantale, Tantal, Tántalo

Physical properties
Melting point: 3017 ° C, 5463 ° F, 3290 K
Boiling point: 5458 ° C, 9856 ° F, 5731 K
Density: 16.69 g · cm3
Bulk Density: 15 g · cm3
Density @ 20øC: 16.6 g / cm 3
Solid Density: 16650 kg · m3
Specific Heat: 0.14 (kJ / kg K)
Superconductivity Temperature: 4.47 [-268.68 ° C (-451.62 ° F)] K
Heat of Melting (kJ · mol-1): 31.4
Heat of Vaporization (kJ · mol-1): 758.22
Heat of Atomization (kJ · mol-1): 781,425
Thermal Conductivity: 57.5 W · m-1 · K-1
Thermal Expansion: (25 ° C) 6.3 μm · m-1 · K-1
Electrical Resistivity: (20 ° C) 131 nΩ · m
Thermal Thermal Capacity: 25.36 J · mol-1 · K-1
Young's modulus: 186 GPa
Shear modulus: 69 GPa
Bulk Module: 200 GPa
Poisson Index: 0.34
Hardness of Mohs: 6.5
Vickers Hardness: 873 MPa
Brinell Hardness: 800 MPa
Sound Speed: (20 ° C) 3400 m · s-1
Pauling electronegativity: 1.5

Allred Rochow Electronegativity: 1.33
Pauling's electropositivity: 2.5
Reflectivity (%): 78

Chemical properties
Electrons: 73
Protons: 73
Neutron: 108
Electronic configuration: [Xe] 4f14 5d3 6s2
Atomic radius: 146 p.m.
Atomic radius, unbound (Å): 2.22
Covalent radius: 170 ± 20h
Covalent Ray (Å): 1.58
Ray Van der Waals: 200 pm
Oxidation states: 5, 4, 3, 2, -1 (slightly acidic oxide)
Solid state
Crystalline structure: centered cubic body
Magnetic ordering: paramagnetic
Electronic affinity (kJ · mol-1) 31,057
1st Ionization Energy: 761 kJ · mol-1
2nd Ionization Energy: 1500 kJ · mol-1

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