Data Sheet
Tantalum (Ta, TaW2.5, TaW10)Shenzhen Sunrise Metal Industry Co.,Ltd 深圳市东升稀有金属有限公司
Physical Properties
Element Symbol Ta
Atomic Number 73
Atomic Mass 180.95
Valency 2, 3, 4, 5
Density (20 °C) 16.65 g/cm³
Crystal Structure body-centered cubic (bcc)
Melting Point 2996 °C
Boiling Point 5425 °C
Vapor Pressure 1 ·10-8 hPa (~2000 °C)
1 ·10-5 hPa (~2400 °C)
Specific Electrical Resistivity 0.135 ·10-6 Ω · m (20 °C)
0.55 ·10-6 Ω · m (1000 °C)
0.90 ·10-6 Ω · m (2000 °C)
Coefficient of Thermal Expansion 6.5 · 10-6 K-1 (20 °C)
8 · 10-6 K-1 (1500 °C)
Thermal Conductivity 54 W/m · K-1 (20 °C)
83 W/m · K-1 (2000 °C)
Mechanical Properties
Hardness 90-210 HV (min.)
E-Modulus 186 GPa (20 °C)
Tensile Strength Rm 170-300 MPa (typ.)
Yield Strength Rp 0.2 100-200 MPa (typ.)
Elongation A 10-30 % (typ.)
Important Alloys
Ta 99.95 % (R05200 vacuum arc-melt)
Ta 99.95 % (R05400 powder metallurgical)
Ta 99.99 % (4N Quality)
Ta97.5W2.5 (R05252 vacuum arc-melt)
Ta90W10 (R05255 vacuum arc-melt)
Ta60Nb40 (R05240 vacuum arc-melt)
ASTM Standard Specifications
ASTM B364 (Tantalum and Tantalum-Alloy Ingots)
ASTM B365 (Tantalum and Tantalum Alloy Rod and Wire)
ASTM B708 (Tantalum and Tantalum Alloy Plate, Sheet and Strip)
ASTM B521 (Tantalum and Tantalum Alloy Seamless and Welded Tubes)
ASTM F560 (Unalloyed Tantalum for Surgical Implant Applications)
Significant Characteristics and Applications
| Excellent corrosion resistance to aggressive fluids
and many molten metals
| Very high melting point, only exceeded by Tungsten and Rhenium
| Very ductile, good weldability and relatively good deformability
| Very good biocompatibility
Tantalum is used as pure metal or as an alloy in the process industry
for manufacturing vessels, stirrers, tubes and heat exchangers, for
medical implants, markers and surgical instruments as well as for high
temperature applications for heating elements, heat shielding and
other components.
Tantalum-Tungsten (TaW2.5)
Compared with pure Tantalum, this alloy has a better strength,
particularly a better high temperature strength
Tantalum-Tungsten (TaW10)
Range of Products
Foils, strips, ribbons, sheets, plates, wires, rods, tubes, sputtering targets, evaporation boats, crucibles, filaments, heaters, high temperature components,
standard fabricated components (screws, nuts and others) and parts according to drawings.Shenzhen Sunrise Metal Industry Co.,Ltd 深圳市东升稀有金属有限公司
Tantalum (Ta, TaW2.5, TaW10)Shenzhen Sunrise Metal Industry Co.,Ltd 深圳市东升稀有金属有限公司
skype :Li.mary9
QQ : 1957953030
Element Symbol Ta
Atomic Number 73
Atomic Mass 180.95
Valency 2, 3, 4, 5
Density (20 °C) 16.65 g/cm³
Crystal Structure body-centered cubic (bcc)
Melting Point 2996 °C
Boiling Point 5425 °C
Vapor Pressure 1 ·10-8 hPa (~2000 °C)
1 ·10-5 hPa (~2400 °C)
Specific Electrical Resistivity 0.135 ·10-6 Ω · m (20 °C)
0.55 ·10-6 Ω · m (1000 °C)
0.90 ·10-6 Ω · m (2000 °C)
Coefficient of Thermal Expansion 6.5 · 10-6 K-1 (20 °C)
8 · 10-6 K-1 (1500 °C)
Thermal Conductivity 54 W/m · K-1 (20 °C)
83 W/m · K-1 (2000 °C)
Mechanical Properties
Hardness 90-210 HV (min.)
E-Modulus 186 GPa (20 °C)
Tensile Strength Rm 170-300 MPa (typ.)
Yield Strength Rp 0.2 100-200 MPa (typ.)
Elongation A 10-30 % (typ.)
Important Alloys
Ta 99.95 % (R05200 vacuum arc-melt)
Ta 99.95 % (R05400 powder metallurgical)
Ta 99.99 % (4N Quality)
Ta97.5W2.5 (R05252 vacuum arc-melt)
Ta90W10 (R05255 vacuum arc-melt)
Ta60Nb40 (R05240 vacuum arc-melt)
ASTM Standard Specifications
ASTM B364 (Tantalum and Tantalum-Alloy Ingots)
ASTM B365 (Tantalum and Tantalum Alloy Rod and Wire)
ASTM B708 (Tantalum and Tantalum Alloy Plate, Sheet and Strip)
ASTM B521 (Tantalum and Tantalum Alloy Seamless and Welded Tubes)
ASTM F560 (Unalloyed Tantalum for Surgical Implant Applications)
Significant Characteristics and Applications
| Excellent corrosion resistance to aggressive fluids
and many molten metals
| Very high melting point, only exceeded by Tungsten and Rhenium
| Very ductile, good weldability and relatively good deformability
| Very good biocompatibility
Tantalum is used as pure metal or as an alloy in the process industry
for manufacturing vessels, stirrers, tubes and heat exchangers, for
medical implants, markers and surgical instruments as well as for high
temperature applications for heating elements, heat shielding and
other components.
Tantalum-Tungsten (TaW2.5)
Compared with pure Tantalum, this alloy has a better strength,
particularly a better high temperature strength
Tantalum-Tungsten (TaW10)
Range of Products
Foils, strips, ribbons, sheets, plates, wires, rods, tubes, sputtering targets, evaporation boats, crucibles, filaments, heaters, high temperature components,
standard fabricated components (screws, nuts and others) and parts according to drawings.Shenzhen Sunrise Metal Industry Co.,Ltd 深圳市东升稀有金属有限公司
skype :Li.mary9
QQ : 1957953030
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