Technical Data Sheet
Safety Data Sheet
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Tantalum Rod

Tantalum Rods come in a huge choice of 170 size variations. Tantalum offers excellent corrosion resistance, good conductivity, biocompatibility and a high melting point of approximately 3,020 degrees Celsius (5,468 degrees Fahrenheit). Properties that make this material prized across a range of industries, including electronics, aerospace, medical, chemical and nuclear. Its many applications include being used in chemical processing equipment, aircraft components, rocket engines and electronic devices. The availability of Tantalum Rods in such as wide range of diameters and lengths makes them suitable for prototypes through high volume production runs.
Temper: Annealed
Diameter: 1.5mm
Length: 200mm
Technical Name: Tantalum
Formula: Ta
Percentage Purity: 99.9%
Density: 16.6g/cm³
CAS Number: 7440-25-7
UOM Code: 427-033-32
SKU: 1000169771
Product Code: TA00-RD-000115

Tolerances

Rod
Diameter =<10mm ±10%
Diameter >10mm ±5%
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Tolerances

Rod
Diameter =<10mm ±10%
Diameter >10mm ±5%
Technical Data Sheet
Safety Data Sheet

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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 73
Crystal structure Body centred cubic
Electronic structure Xe 4f¹⁴ 5d³ 6s²
Valences shown 2,3,4,5
Atomic weight( amu ) 180.9479
Thermal neutron absorption cross-section( Barns ) 22
Photo-electric work function( eV ) 4.1
Natural isotope distribution( Mass No./% ) 180/ 0.012
Natural isotope distribution( Mass No./% ) 181/ 99.988
Atomic radius - Goldschmidt( nm ) 0.147
Ionisation potential( No./eV ) 1/ 7.88
Ionisation potential( No./eV ) 2/ 16.2
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.342
Poisson's ratio 0.342
Bulk modulus( GPa ) 196.3
Bulk modulus( GPa ) 196.3
Tensile modulus( GPa ) 185.7
Tensile modulus( GPa ) 185.7
Hardness - Vickers( kgf mm⁻² ) 200
Hardness - Vickers( kgf mm⁻² ) 90
Tensile strength( MPa ) 760
Tensile strength( MPa ) 172-207
Yield strength( MPa ) 705
Yield strength( MPa ) 310-380
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 13.5@20@20°C
Superconductivity critical temperature( K ) 4.47
Temperature coefficient( K⁻¹ ) 0.0035@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.33
Physical Properties
Element Value
Boiling point( C ) 5425
Density( gcm⁻³ ) 16.6@20°C
Thermal Properties
Element Value
Melting point( C ) 2996
Latent heat of evaporation( J g⁻¹ ) 4165
Latent heat of fusion( J g⁻¹ ) 174
Specific heat( J K⁻¹ kg⁻¹ ) 140@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 57.5@0-100
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 6.5@0-100°C
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