Original
By certification 
CAS Number: |
7440-25-7 |
Standard: |
ASTM B364-92 |
Purity: |
≥99.9% or 99.95% |
Size: |
Diameter 70-195 mm, Length ≤1600 mm |
Material Grade: |
R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both R05400, unalloyed tantalum, powder-metallurgy consolidation. |
Tantalum Ingot Description
Ingots are generally the least costly metallic form and useful in general applications.
SSC specializes in producing custom compositions for commercial and research applications and for new proprietary technologies.
The preparation of tantalum and tantalum alloys is usually carried out in an electron beam furnace. In order to obtain a uniform ingot in the electron beam furnace, the vacuum arc melting is carried out. All tantalum and tantalum alloys will be cast in an electron beam furnace, as to whether vacuum arc melting (VAR) is used at the same time, and the number of melting times is determined according to the use of the specific product.
Tailor-made tantalum alloy ingots, such as tantalum tungsten alloy, tantalum niobium alloy are also available at SSC.
Chemical Composition
Element |
C |
O |
N |
H |
Fe |
Mo |
Nb |
Ni |
Si |
Ti |
W |
R05200 (%,Max) |
0.01 |
0.015 |
0.01 |
0.0015 |
0.01 |
0.02 |
0.1 |
0.01 |
0.005 |
0.01 |
0.05 |
R05400 (%,Max) |
0.01 |
0.03 |
0.01 |
0.0015 |
0.01 |
0.02 |
0.1 |
0.01 |
0.005 |
0.01 |
0.05 |
Tantalum Ingot Applications and Related Industries
● Laboratory equipment
● Substitute for platinum
● Manufacturing of superalloys and electron-beam melting
● Metallurgy
● Machinery
● Glass
● Ceramic
● Superalloy additive in nickel-based alloys
● Sputtering targets
Chemical Identifiers
Linear Formula |
Ta |
MDL Number |
MFCD00011252 |
EC No. |
231-135-5 |
Beilstein/Reaxys No. |
N/A |
Pubchem CID |
23956 |
SMILES |
[Ta] |
InchI Identifier |
InChI=1S/Ta |
InchI Key |
GUVRBAGPIYLISA-UHFFFAOYSA-N |
Tantalum Ingot Properties (Theoretical)
Molecular Weight |
180.94 |
Appearance |
Silvery-gray solid |
Melting Point |
3017 °C |
Boiling Point |
5458 °C |
Density |
16.69 g/cm3 (20 °C) |
Solubility in H2O |
N/A |
Crystal Phase / Structure |
α: body-centered cubic (bcc) / β: tetragonal |
Electrical Resistivity |
131 nΩ·m (20 °C) |
Electronegativity |
1.5 Paulings |
Heat of Fusion |
36.57 kJ/mol |
Heat of Vaporization |
753 kJ/mol |
Poisson's Ratio |
0.34 |
Specific Heat |
140 J/kg·K |
Thermal Conductivity |
57.5 W/m·K |
Thermal Expansion |
6.3 µm/m·K |
Vickers Hardness |
870–1200 MPa |
Young's Modulus |
186 GPa |
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