Tantalum and tantalum alloy (such as Ta-2 5W, Ta-10W, Ta-40Nb, etc.) pipes have the characteristics of high melting point, corrosion resistance, and good cold working performance. They are widely used in the chemical industry, high-temperature technology and the atomic energy industry.
Tantalum Seamless Fittings details
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 | 0.006 | 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. | |||||||||||||
| Mechanical Property | Grade | Tensile strength min | Yield strength min, | Elongation min,% |
| (UNS) | psi( (MPa) | psi (MPa)(2%) | (1 inch gage length) | |
| Ta(R05200 R05400) | 30000(207) | 20000(138) | 20 | |
| Ta-10W(R05255) | 70000(482) | 60000(414) | 15 | |
| Ta-2.5W(R05252) | 40000(276) | 30000(207) | 20 | |
| Ta-40Nb(R05240) | 35000(241) | 20000(138) | 25 |
Outside diameter, inch (mm)
Diameter tolerance, inch (mm), +/-
Permissible variation in wall thickness, ％,+/-
<1 (25.4)
0.004 (0.102)
5
1~1.5 (25.4~38.1)
0.005 (0.127)
5
1.5~2 (38.1~50.8)
0.006 (0.152)
5
2~2.5 (50.8~63.5)
0.007 (0.178)
5
2.5~3.5 (63.5~88.9)
0.010 (0.254)
5
Applications:
Tantalum Tube (Tantalum Pipe) is largely applied in producing tantalum response vessel, tantalum heat exchangers (shell & tube heat exchanger), tantalum pipe line(piping or channel), tantalum condenser, tantalum agitator, tantalum cooler, tantalum boiler, tantalum bayonet heater, tantalum spiral (helical) coil, U-tube heat exchanger or "U" tube bundle heat exchanger during the substance sector for condensing, re-boiling, preheating and cooling of nitric acid, sulfuric acid, hydrochloric acid, formic acid and combinations of those acids with a great deal of other chemicals.
Features:
Good cold process ability
Low vapor pressure
High temperature strength
High melting point
Excellent chemical stability
Good resistance to corrosion
High dielectric constant ,in surface oxide film
Good bio-compatibility
Features:Tantalum belong to the high melting point ,high boiling point rare metal color ,steel ,ductility and corrosion resistance
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 or 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 % columbium, electron-beam furnace or vacuum-arc melt, or both.
Main tantalum products:
Tantalum powder, tantalum ingot, tantalum target, tantalum plate, tantalum foil, tantalum rod, tantalum wire, tantalum tube, tantalum capillary tube, tantalum standard parts, (tantalum bolts, tantalum nuts, tantalum flange, tantalum gasket) tantalum non-standard parts , (tantalum balls, tantalum boats, tantalum funnels, tantalum crucibles, tantalum particles), etc. can be processed and customized according to customer drawings.
Tantalum can be made into welded pipes and seamless pipes and has a wide range of uses. Seamless tubes are manufactured using extrusion, tube reduction, or deep drawing from sheet metal. The welding manufacturing method is to form the strip first, then form it into a tube shape, and then weld the joints with gas tungsten arc (GTAW).
