The productive processes of
tantalum rod
are as follows: Put tantalum powder into leather sheath; hammer into bar/rod shape by using machine; put embryonic form into high temperature sintering furnace; finish producing by forging, straightening and grinding.Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
Available size:￠4~￠120mm
Standard: As per ASTM B 365-98
Properties of tantalum rod:
Tantalum rods have good strength and hardness, low density, light weight, high temperature resistance, low temperature resistance, good mechanical properties, excellent corrosion resistance , no magnetic property, no toxin, good heat transfer performance. At the same time, tantalum rod has super conductivity.
Applications of tantalum rod:
Tantalum rod products are widely used in navigation, aerospace, vacuum salt making, automobile industry, medical and sports, papermaking, textile industry, electric power industry, metallurgical industry, fertilizer industry, seawater desalination industry. Tantalum rod is also used to produce watch shell, computer shell and spare parts.
Sanhui Co., Ltd is one of tantalum suppliers. We can produce tantalum rod as customers’requirements.
Table.1.Chemical composition:
| chemistry% | |||||||||||||
| designation | chief component | impurities maximum | |||||||||||
| Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
| Ta1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.006 | 0.002 | 0.03 | 0.01 | 0.004 | 0.0015 | 0.002 | |
| Ta2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.08 | 0.015 | 0.01 | 0.0015 | 0.01 | |
| TaNb3 | Remainder | <3.5 | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.015 | 0.01 | 0.0015 | 0.01 | |
| TaNb20 | Remainder | 17.0-23.0 | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.015 | 0.01 | 0.0015 | 0.01 | |
| Ta2.5W | Remainder | 0.005 | 0.003 | 0.002 | 3.0 | 0.006 | 0.002 | 0.04 | 0.015 | 0.005 | 0.0015 | 0.006 | |
| Ta10W | Remainder | 0.005 | 0.003 | 0.002 | 11 | 0.006 | 0.002 | 0.04 | 0.015 | 0.005 | 0.0015 | 0.006 | |
| special require of tantalum wire to be agreed on by the supplier and buyer of negotiations. | |||||||||||||
Table2. Permissible variations in diameter for tantalum rods and wires
| Diameter， inch (mm) | Tolerance <， +/-inch (mm) |
| 0.010~0.020 excl (0.254~0.508) | < 0.0005 (0.013) |
| 0.020~0.030 excl (0.508~0.762) | < 0.00075 (0.019) |
| 0.030~0.060 excl (0.762~1.524) | < 0.001 (0.025) |
| 0.060~0.090 excl (1.524~2.286) | < 0.0015 ( 0.038) |
| 0.090~0.125 excl (2.286~3.175) | < 0.002 (0.051) |
| 0.125~0.187 excl (3.175~4.750) | < 0.003 (0.076) |
| 0.187~0.375 excl (4.750~9.525) | < 0.004 (0.102) |
| 0.375~0.500 excl (9.525~12.70) | < 0.005 (0.127) |
| 0.500~0.625 excl (12.70~15.88) | < 0.007 (0.178) |
| 0.625~0.750 excl (15.88~19.05) | < 0.008 (0.203) |
| 0.750~1.000 excl (19.05~25.40) | < 0.010 (0.254) |
| 1.000~1.500 excl (25.40~38.10) | < 0.015 (0.381) |
| 1.500~2.000 excl (38.10~50.80) | < 0.020 (0.508) |
| 2.000~2.500 excl (50.80~63.50) | < 0.030 (0.762) |
Table3. Mechanical requirements (annealed condition)
| Rod， Diameter 0.125" (3.18mm)~2.5" (63.5mm) | |||
| Grade | Tensile strength， psi (MPa)， ≥ |
Yield strength， psi (MPa)， ≥ |
Elongation in 1 inch gage length， ％， ≥ |
| RO5200/RO5400 | 25000 (172) | 15000 (103) | 25 |
| RO5252 | 40000 (276) | 28000 (193) | 20 |
| RO5255 | 70000 (482) | 55000 (379) | 20 |
| RO5240 | 35000 (244) | 15000 (103) | 25 |
