Tantalum Bar

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Tantalum has great conductive of heat and electricity. Tantalum and tantalum alloy bar is widely used in:

-Ion sputtering and spray materials
-High temperature furnace parts
-Prosthetic devices for humans
-Tantalum electrolyte capacitors
-Vacuum electron cathode emission source

We provide Ta metal bar, tantalum cylinder (Ta cylinder) in length of up to 2m. We also provide tantalum tungsten alloy and tantalum niobium alloy bars per request.

Specifications for tantalum and tantalum alloy bar

Process: Forging, Rolled, Cutting, etc.
Specifications: As per ASTM B365
Grades: R05200, R05400, UNS Grade R05252 (Ta2.5W), UNS Grade R05255 (Ta10W), UNS Grade R05240 (Ta40Nb)
Diameter: 4mm x 4mm to 100mm x 100mm, Length: 2000mm Max

Wider bars will be named as tantalum plate and block.

Mechanical properties for tantalum and tantalum alloy bar

Product condition Tensile strength (MPa) Elongation, %
Annealed 300~600 10~30
Half annealed >600~1000 <5
Un-annealed >1000 <5

Chemical compositions for tantalum and tantalum alloy

Element R05200 R05400 R05255 R05252 R05240
C 0.01 0.01 0.01 0.01 0.01
O 0.015 0.03 0.015 0.015 0.02
N 0.01 0.01 0.01 0.01 0.01
H 0.0015 0.0015 0.0015 0.0015 0.0015
Fe 0.01 0.01 0.01 0.01 0.01
Mo 0.02 0.02 0.02 0.02 0.02
Nb 0.1 0.1 0.1 0.5 35.0–42.0
Ni 0.01 0.01 0.01 0.01 0.01
Si 0.005 0.005 0.005 0.005 0.005
Ti 0.01 0.01 0.01 0.01 0.01
W 0.05 0.05 9.0–11.0 2.0–3.5 0.05

Packaging of our tantalum

ETI’s tantalum bar is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage on Ta bars which might be caused during storage or transportation. Outer package is usually wooden crate.

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