描述
For more than 10 years, Hoau has been a leading supplier of rare metals such as tantalum, niobium and its alloys. Relying on China’s abundant non-ferrous metal mine resources, we use exquisite metal processing technology to meet the needs of customers in the fields of chemical industry, optoelectronics, aviation and other fields for non-ferrous metal materials.
| Tantalum and tantalum alloy grades and standards |
| Products | grade | American Standards |
| Molybdenum rods | Number: R05200 | ASTM B365 standard |
| Ta2.5W bar | Number: R05252 | ASTM B365 standard |
| Ta10W stick | Number: R05255 | ASTM B365 standard |
| Ta40Nb rod | No.: R05240 | ASTM B365 standard |
| Chemical requirements |
| Content, Maximum, Weight % |
| element | Electron Beam Casting/Vacuum Arc Casting R05200 Unalloyed Tantalum | Sintered R05400 unalloyed tantalum | Electron Beam Casting/Vacuum Arc Casting R05255 90% Tantalum 10% Tungsten | Electron Beam Casting/Vacuum Arc Casting R05252 97.5% Tantalum 2.5% Tungsten | Electron Beam Casting/Vacuum Arc Casting R05240 60% Tantalum 40% Niobium |
| C | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
| O | 0.015 | 0.03 | 0.015 | 0.015 | 0.020 |
| N | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
| H | 0.0015 | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
| niobium | 0.100 | 0.100 | 0.100 | 0.50 | 35.0 – 42.0 |
| iron | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
| titanium | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
| W | 0.050 | 0.050 | 9.0 – 11.0 | 2.0 – 3.5 | 0.050 |
| mo | 0.020 | 0.020 | 0.020 | 0.020 | 0.020 |
| Four | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 |
| nickel | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
| Cyanide | remainder | remainder | remainder | remainder | remainder |
| Dimensions and tolerances of tantalum rods and tantalum rods (mm) |
| Diameter or length | Allowable deviation of diameter or length | Specifies the allowable deviation of the length |
| Forged bars | Pultrusion rods | Rolled bars | Grind the rods |
| 3.0 – 4.5 | ± 0.05 | — | ± 0.05 | One | + 5 |
| > 4.5 – 6.5 | ± 0.10 | — | ± 0.10 | — | + 5 |
| > 6.5 – 10.0 | ± 0.15 | — | ± 0.15 | — | + 5 |
| > 10 – 16 | ± 0.20 | — | ± 0.20 | — | + 5 |
| > 16 – 18 | ± 1.0 | — | One | ± 0.30 | + 20 |
| > 18 – 25 | ± 1.5 | ± 1.0 | — | ± 0.40 | + 20 |
| > 25 – 40 | ± 2.0 | ± 1.5 | One | ± 0.50 | + 20 |
| > 40 – 50 | ± 2.5 | ± 2.0 | One | ± 0.60 | + 20 |
| > 50 – 65 | ± 3.0 | ± 2.0 | — | ± 0.80 | + 20 |
| We can produce according to the tolerances required by customers Products 。 |
| Mechanical properties of tantalum rod and tantalum rod |
| Products | Diameter/mm | Tensile strength/MPa | Yield strength/MPa | Elongation/% |
| Cyanide | 3.0 – 18 | ≥ 175 | ≥ 140 | 25 |
| Mechanical properties of tantalum and tantalum alloy bars and bars (annealed) |
| Products | Diameter 0.125″ (3.18 mm) ~ 2.5″ (63.5 mm) |
| Tensile strength/psi (MPa) ≥ | Yield strength/psi (MPa) ≥ | Elongation (standard 25.4mm)/% |
| Molybdenum rods | 25000 (172) | 15000 (103) | 25 |
| Ta2.5W bar | 40000 (276) | 28000 (193) | 20 |
| Ta10W stick | 70000 (482) | 55000 (379) | 20 |
| Ta40Nb rod | 35000 (244) | 15000 (103) | 25 |
Tantalum rod and tantalum rod application
Tantalum rods and tantalum rods have a diameter of 2.5mm. With the advantage of softness, tantalum rods and bars can be used for forging wires. In the production of wire, people make the surface of the wire rod oxidized by anodizing to form an oxide film, and it is lubricated by beeswax. In the medical field, tantalum rods can be used to repair hip joints, skulls and bones, repair tumor-damaged bones, suture clips, stent blood vessels, etc. For more than 10 years, Hoau has been a leading supplier of rare metals such as tantalum, niobium and its alloys. Relying on China’s abundant non-ferrous metal mine resources, we use exquisite metal processing technology to meet the needs of customers in the fields of chemical industry, optoelectronics, aviation and other fields for non-ferrous metal materials.
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