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Melted quality tantalum (TaM) is usually more economical to produce than sintered quality tantalum and provides sufficient quality for many applications. However, the material is neither as fine nor as homogeneous as sintered quality tantalum.

Properties

General

Property	Temperature	Value
Density	23.0 °C	16.6 g/cm³
Neutron capture cross-section	23.0 °C	0 m²

Dimension

Property	Value
Diameter	20 - 40 mm
Length	300 - 1900 mm
Dimensions	Available dimensions (diameter x length, mm x mm): 20 x 300-1900 ; 30 x 300-1900 ; 40 x 300-1900

Mechanical

Property	Temperature	Value
Elongation	23.0 °C	25 %
Tensile strength	23.0 °C	172 MPa
Yield strength Rp0.2	23.0 °C	103 MPa

Thermal

Property	Value
Crystallization temperature	900 - 1450 °C
Melting point	2966 °C

Electrical

Property	Temperature	Value
Electron work function	23.0 °C	4.3 eV
Superconductive transition temperature		-268.65 °C

Acoustical

Property	Temperature	Value
Sound speed, longitudinal	23.0 °C	4100 m/s
Sound speed, transversal	23.0 °C	2900 m/s

Chemical properties

Property	Value	Comment
Cadmium	1E-4 %
Carbon	1E-3 %
Hydrogen	4E-4 %
Iron	5E-4 %
Molybdenum	1E-3 %
Nickel	5E-4 %
Niobium	1.9E-3 %
Nitrogen	5E-4 %
Oxygen	1.3E-3 %
Silicon	1E-3 %
Tantalum	99.95 %	min
Titanium	1E-4 %
Tungsten	2E-3 %

Technological properties

Property
Corrosion properties	Outstanding resistance against aqueous solutions and metal melts.
Other	This material has excellent cold ductility, superconductivity and a high level of biocompatibility.

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