Pure Tantalum (Ta)

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Description

Tantalum is a sensible choice whenever high corrosion resistance is required. Even though tantalum is not one of the noble metals, it is comparable to them in terms of chemical resistance. In addition, tantalum is very easy to work at well below room temperature despite its body-centered cubic crystal structure.

This material data has been provided by Plansee.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueTemperature

Density

16.6 g/cm³

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23.0 °C

Molar mass

180.95 g/mol

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Neutron capture cross-section

0 m²

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23.0 °C

Mechanical

PropertyValueTemperatureComment

Elastic modulus

186 GPa

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23.0 °C

Hardness, Vickers, 10

80 - 125 [-]

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23.0 °C

recrystallized

Poisson's ratio

0.35 [-]

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23.0 °C

Thermal

PropertyValueTemperature

Boiling point

5458 °C

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Coefficient of thermal expansion

6.4E-6 1/K

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23.0 °C

Crystallization temperature

900 - 1450 °C

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Melting point

2996 °C

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Specific heat capacity

140 J/(kg·K)

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23.0 °C

Thermal conductivity

57.5 W/(m·K)

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23.0 °C

Electrical

PropertyValueTemperature

Electrical conductivity

8.00E+6 S/m

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23.0 °C

Electrical resistivity

1.3E-7 Ω·m

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23.0 °C

Electron work function

4.3 eV

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23.0 °C

Superconductive transition temperature

-268.65 °C

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Acoustical

PropertyValueTemperature

Sound speed, longitudinal

4100 m/s

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23.0 °C

Sound speed, transversal

2900 m/s

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23.0 °C

Technological properties

Property
Application areas

Tantalum's corrosion resistance makes it a valuable material in a large number of chemical applications. This material is used, for example, to produce heat exchangers for the equipment construction sector, charge carriers for furnace construction, implants for medical technology and capacitor components for the electronics industry.