Tantalum
Tantalum and Tantalum Alloy
• R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both
• R05400, unalloyed tantalum, powder-metallurgy consolidation.
• R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.
• R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both.
• R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt.
Chemical Composition
|
Element
|
R05200 (%,Max)
|
R05400 (%,Max)
|
|
C
|
0.01
|
0.01
|
|
O
|
0.015
|
0.03;
|
|
N
|
0.01
|
0.01
|
|
H
|
0.0015
|
0.0015
|
|
Fe
|
0.01
|
0.01
|
|
Mo
|
0.02
|
0.02
|
|
Nb
|
0.1
|
0.1
|
|
Ni
|
0.01
|
0.01
|
|
Si
|
0.005
|
0.005
|
|
Ti
|
0.01
|
0.01
|
|
W
|
0.05
|
0.05
|
SPECIFICATION
1.Tantalum Foil & Tantalum Strip Specification
Condition: Annealed
|
Product Name
|
Thickness (mm)
|
Width (mm)
|
Length (mm)
|
Material
|
Standard
|
Purity
|
|
Tantalum Foil
|
0.03-0.07
|
30-200
|
>50
|
UNS R05200, UNS R05400
|
ASTM B708-98
|
≥99.95% or 99.99%
|
|
Tantalum Strip
|
0.03
|
1-1.5
|
Up to 50000
|
UNS R05200, UNS R05400
|
ASTM B708-98
|
≥99.95% or 99.99%
|
2. Tantalum Sheet & Tantalum Plate Specification
Condition: Annealed
|
Size
|
Thickness: 0.07-10 mm |
| Width: 30-1000 mm | |
| Length: 30-3000 mm | |
|
Material
|
UNS R05200, UNS R05400 |
|
Standard
|
ASTM B708-98 |
|
Purity
|
≥99.95% or 99.99% |
3. Tantalum Tube & Tantalum Pipe Specification
|
Outer Diameter
|
1.0~150mm |
|
Wall Thickness
|
0.2~5.0mm |
|
Length
|
200~6000mm |
|
Material
|
R05200, R05400 |
|
Standard
|
ASTM B521-98 |
|
Purity
|
99.95% or 99.99% |
4. Tantalum Bar & Tantalum Rod Specification
|
Diameter
|
1 inch ~ 8 inch |
|
Length
|
< 10 feet |
|
Material
|
Pure tantalum: R05200, R05400; |
| Tantalum Niobium Rod / Bar R05240 (Ta-40Nb); | |
| Tantalum Tungsten Rod / Bar R05252 (Ta-2.5W), R05255 (Ta-10W). | |
|
Standard
|
ASTM B 365 |
|
Purity
|
≥99.95% |
