|
|
| Tantalum
and Ta-Alloys |
 |
| |
| 1. High Quality Tantalum Metal (wt%)
|
|
|
| Type |
Impurities(%),
max. |
| C |
O |
N |
H |
Nb |
Fe |
Ti |
W |
Mo |
Si |
Ni |
Ta |
| R05200 |
0.010 |
0.015 |
0.010 |
0.0015 |
0.10 |
0.010 |
0.010 |
0.050 |
0.020 |
0.005 |
0.010 |
remainder |
| R05400 |
0.010 |
0.03 |
0.010 |
0.0015 |
0.10 |
0.010 |
0.010 |
0.050 |
0
.020 |
0.005 |
0.010 |
remainder |
| |
| 2. Typical Composition of Ta-alloys (wt%)
|
|
| Type |
Impurities(%), max. |
| C |
O |
N |
H |
Nb |
Fe |
Ti |
W |
Mo |
Si |
Ni |
Ta |
| R05252 |
0.010 |
0.015 |
0.010 |
0.0015 |
0.50 |
0.010 |
0.010 |
2.0-3.5 |
0.020 |
0.005 |
0.010 |
remainder |
| R05255 |
0.010 |
0.015 |
0.010 |
0.0015 |
0.10 |
0.010 |
0.010 |
9.0-11.0 |
0.020 |
0.005 |
0.010 |
remainder |
| R05240 |
0.010 |
0.020 |
0,010 |
0.0015 |
35.0-42.0 |
0.010 |
0.010 |
0.050 |
0.020 |
0.005 |
0.010 |
remainder |
| 3. Typical Specification |
|
|
| Type |
Dimension (mm) |
Perform Standard |
| Foil, Sheet, Plate |
0.01-0.09 ¡Á max. 100 ¡Á L 0.1-0.2
¡Á max. 300 ¡Á L 0.3 ¡Á max. 1000 ¡Á L |
ASTM B 708-98 |
| Wire, Rod, Bar |
Dia. 0.24 ¨C100 ¡Á L |
ASTM B 365-98 |
| Tube |
OD. 0.5-50 ¡Á WT. 0.2-5.0 ¡Á L |
ASTM B 521-98 |
| 4. Description
|
|
| |
| As a high melting point metal,
Ta possesses a low vapour pressure and good electrical and thermal
conductivity up to very high temperature. The advantages of Ta are
excellent corrosion resistance, high high-temperature strength, good
machinability and good biocompatibility. |
| 5. Application |
|
| |
| Tantalum and Ta-Alloy are
mainly used for Heat Exchangers, Shell and Tube Heaters, Bayonet
Heaters, Condensers, vessel liners, Sputtering Targets, Cathode Protection
Systems for steel structures such as bridges, water tanks, Corrosion
Resistant Fasteners, High Temperature Furnace Parts, Nuclear Reactors,
Aircraft and Missile Parts. |
|