Tantalum Round Bar
2. Catalog: Other Metals
3. Material: Tantalum
4. Grade: Ta1, Ta2, R05200,R05400, R05252, R05255, R05240
5. Purity: 99.95%, 99.99%
6. Density: 16.69 g/cm3
7. Melting point: 2996℃
8. Form: Bar, Rod, Wire, Tube, Pipe
9. Shape: Round, Square, Customization
10. Specification: φ3mm~φ120mm
11. Surface: Silver metal surface, Polished, Ground finished, Lathe turning bright surface.
12. Condition: Annealed state, hard state
13. Application: Used to make electrodes for electron tubes, rectifiers and electrolytic capacitors, X-ray and radiation shielding, Medical, Vacuum furnace heating elements, Machined fasteners (such as bolts, screws) and Barrel sputtering targets, etc
14. Standard: ASTM B365
Tantalum round bar is a cylindrical rod or bar product made of high-purity tantalum or tantalum-tungsten alloy, which is made from tantalum ingot. The purity of tantalum rods is usually 99.95% or 99.99%.
Product Chemical Composition
|
Tantalum Round Bar Chemical Composition |
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|
Grade |
Chemical composition%, Max |
|||||||||||
|
Fe |
Si |
Ni |
W |
Mo |
Ti |
Nb |
O |
C |
H |
N |
Ta |
|
|
Ta1 |
0.005 |
0.005 |
0.005 |
0.005 |
0.002 |
0.002 |
0.005 |
0.02 |
0.004 |
0.002 |
0.005 |
Bal |
|
Ta2 |
0.005 |
0.005 |
0.005 |
0.005 |
0.002 |
0.002 |
0.1 |
0.03 |
0.1 |
0.002 |
0.01 |
Bal |
|
R05200 |
0.01 |
0.005 |
0.01 |
0.05 |
0.02 |
0.01 |
0.1 |
0.015 |
0.01 |
0.0015 |
0.01 |
Bal |
|
R05400 |
0.01 |
0.005 |
0.01 |
0.05 |
0.02 |
0.01 |
0.1 |
0.03 |
0.01 |
0.0015 |
0.01 |
Bal |
|
R05255 |
0.01 |
0.005 |
0.01 |
9-11 |
0.02 |
0.01 |
0.1 |
0.015 |
0.01 |
0.0015 |
0.01 |
Bal |
|
R05252 |
0.01 |
0.005 |
0.01 |
2-3.5 |
0.02 |
0.01 |
0.5 |
0.015 |
0.01 |
0.0015 |
0.01 |
Bal |
|
R05240 |
0.01 |
0.005 |
0.01 |
0.05 |
0.02 |
0.01 |
35-42 |
0.02 |
0.01 |
0.0015 |
0.01 |
Bal |
Tantalum and Tantalum Alloy
- UNS R05200: pure tantalum, vacuum electron-beam melting technology or vacuum-arc melt, or both
- UNS R05400: pure tantalum, powder-metallurgy technology.
- UNS R05252: tantalum-tungsten alloy, 97.5 % Ta, 2.5 % W. Electron-beam furnace or vacuum-arc melt, or both.
- UNS R05255: tantalum-tungsten alloy, 90 % Ta, 10 % W. Electron-beam furnace or vacuum-arc melt, or both.
- UNS R05240: tantalum-niobium alloy, 60 % Ta, 40 % W. Electron-beam furnace or vacuum-arc melt.
Product Specification
|
Tantalum Round Bar Specification |
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|
Grade |
Processing method |
Diameter (mm) |
Diameter Tolerance (mm) |
Length |
Length Tolerance |
||
|
Forging |
Rolling |
After grinding or machining |
|||||
|
Ta1
Ta2
FTa1
FTa2
R05200
R05400
R05255(Ta10W)
R05252(Ta2.5W)
Ta7.5W |
Grinding/Polishing
Turning bright surface
Cold rolled
Cold spin forging
Forging |
3.0～4.5 |
±0.05 |
- |
500～1500 |
±5 |
|
|
＞4.5～6.5 |
±0.10 |
- |
500～1500 |
±5 |
|||
|
＞6.5～10.0 |
±0.15 |
±0.10 |
400～1500 |
±5 |
|||
|
＞10～16 |
±0.10 |
±0.10 |
300～1500 |
±5 |
|||
|
＞16～18 |
±0.10 |
- |
±0.10 |
200～1500 |
±5 |
||
|
＞18～25 |
±0.10 |
- |
±0.10 |
200～1500 |
±5 |
||
|
＞25～40 |
±0.10 |
- |
±0.20 |
150～1500 |
±5 |
||
|
＞40～50 |
±0.20 |
- |
±0.20 |
100～1500 |
±5 |
||
|
＞50～65 |
±1.00 |
- |
±0.20 |
100～1500 |
±5 |
||
|
＞65～200 |
±1.00 |
- |
±0.20 |
100～1500 |
±5 |
||
Product Properties
|
Tantalum Round Bar Physical and Chemical Properties |
|
|
Physical properties |
Tantalum (Atomic#73) |
|
Phase |
Solid |
|
Melting point |
3290 K (3017°C, 5463°F) |
|
Boiling point |
5731 K (5458°C, 9856°F) |
|
Density |
16.69 g/cm³ |
|
Electrical resistivity |
13.5 μΩ-cm |
|
Heat of fusion |
36.57 kJ/mol |
|
Heat of vaporization |
753 kJ/mol |
|
Molar heat capacity |
25.36 J/(mol•K) |
|
Tantalum Bar Mechanical Property Diameter 0.125"(3.18mm)~2.5" (63.5mm) |
|||
|
Grade |
Ultimate tensile strength, smallest, Pounds/inch2 (mpa) |
Minimum yield strength Pounds/inch2 (mpa) |
Elongation, minimum % (1-inch gauge length) |
|
RO5200/RO5400 |
25000 (172) |
15000 (103) |
25 |
|
RO5252 (Ta2.5W) |
40000 (276) |
28000 (193) |
20 |
|
RO5255 (Ta10W) |
70000 (482) |
55000 (379) |
20 |
|
RO5240 (TaNb40) |
40000 (276) |
28000 (193) |
25 |
Advantages
Corrosion Resistance
Resists strong acids and aggressive chemicals, ideal for corrosive environments in chemical and industrial systems.
High Temperature Stability
Maintains structural strength up to 3017 °C, ensuring reliability in high-temperature furnaces and industrial equipment.
Ductility
Good cold working and forming capability allows bending, machining, and fabrication into precision components.
Chemical Inertness
Stable in most chemical environments, reducing contamination and extending service life.
Easy Processing
Supports welding, grinding, and machining to tight tolerances for industrial use.
Product Application
- Aerospace: used to manufacture high-temperature alloy materials, such as parts of aircraft engines and rocket engines.
- Nuclear energy industry: used to manufacture parts in reactors, such as fuel rods.
- Chemical equipment: used to manufacture tower reactors, reactors, etc., and performs well in corrosive environments.
- Electronic devices: used to manufacture capacitors, resistors, etc.
- Medical field: used to manufacture medical devices and implants.
FAQ
Can you provide customized sizes for Tantalum round bars?
Yes, we offer Tantalum round bars in various sizes and lengths. We can customize them based on your exact specifications.
What is the lead time for Tantalum round bar orders?
For standard sizes, the typical lead time is 7–15 working days. For customized orders, delivery may take slightly longer depending on the complexity.
How do you ensure the quality of your Tantalum round bars?
Our products comply with ISO 9001 and ASTM standards. We conduct rigorous quality control throughout the production process, including raw material inspection, machining, and final testing.
Can you provide samples of Tantalum round bars?
Yes, we can provide samples for testing. Please contact us to discuss the sample size and shipping details.
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