High-Temperature Tungsten Forged Rod – Durable, Dimensionally Stable, Low Thermal Expansion

Tungsten has the highest melting point of all metals and is therefore also suitable for very high-temperature applications. It is also characterized by a uniquely low coefficient of thermal expansion and a very high level of dimensional stability.

Properties

General

Property	Temperature	Value
Density	23.0 °C	19.1 g/cm³
Neutron capture cross-section	23.0 °C	0 m²

Dimension

Property	Value
Diameter	30 - 80 mm
Length	100 - 2000 mm
Dimensions	Available dimensions (diameter x length, mm x mm): 30 x 300-1800; 35 x 300-1800; 40 x 300-3000; 45 x 300-2400; 50 x 300-1900; 70 x 100-2200; 80 x 100-2000

Mechanical

Property	Temperature	Value
Hardness, Vickers, 30	23.0 °C	350 - 460 [-]

Thermal

Property	Value
Melting point	3420 °C

Electrical

Property	Temperature	Value
Electron work function	23.0 °C	4.54 eV

Acoustical

Property	Temperature	Value
Sound speed, longitudinal	23.0 °C	5180 m/s
Sound speed, transversal	23.0 °C	2870 m/s

Chemical properties

Property	Value
Aluminium	1E-4 %
Cadmium	1E-4 %
Carbon	6E-4 %
Chromium	3E-4 %
Copper	1E-4 %
Iron	8E-4 %
Lead	1E-4 %
Molybdenum	1.2E-3 %
Nickel	2E-4 %
Nitrogen	1E-4 %
Oxygen	2E-4 %
Potassium	1E-4 %
Silicon	1E-4 %
Tungsten	99.97 %

Technological properties

Property
Application areas	Tungsten rods are mainly used in the lighting industry and high temperature furnace construction.

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