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Tantalum-tungsten alloy is a tantalum alloy formed based on tantalum and adding a certain amount of tungsten element. The Ta-W binary system alloy composed of tantalum and tungsten is an infinite solid solution. As the tungsten content increases, the strength of the alloy increases, but When it exceeds 12%~14% (atomic fraction), the shaping of the recrystallized alloy will be significantly reduced. Tantalum-tungsten alloys include Ta-2.5W and Ta-10W. These tantalum alloys maintain the low-temperature plasticity of pure tantalum and have relatively high With high strength and oxidation resistance, it is an indispensable and important material in aerospace, chemistry, nuclear industry, high temperature technology and other fields.
Product Name: Tantalum Rod, Tantalum tungsten alloy rod,Tantalum Niobium alloy
Grade: RO5252(TaW2.5),RO5255(TaW10),RO5240
Standard: ASTM B365
Density: ≥16.6g/cm3
Delivery Status: Annealed (M)
Process flow:Smelting-→forging-→inspection-→polishing-→vacuum annealing-→inspection-→packaging
Quality assurance: Third-party testing report
| Grade | Main elements | Impurity content less than % | |||||||||||
| Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
| Ta1 | Remain | —— | 0.005 | 0.005 | 0.002 | 0.01 | 0.01 | 0.002 | 0.04 | 0.02 | 0.01 | 0.0015 | 0.01 |
| Ta2 | Remain | —— | 0.03 | 0.02 | 0.005 | 0.04 | 0.03 | 0.005 | 0.1 | 0.03 | 0.01 | 0.0015 | 0.01 |
| TaNb3 | Remain | ＜3.5 | 0.03 | 0.03 | 0.005 | 0.04 | 0.03 | 0.005 | —— | 0.03 | 0.01 | 0.0015 | 0.01 |
| TaNb20 | Remain | 17.0～23.0 | 0.03 | 0.03 | 0.005 | 0.04 | 0.03 | 0.005 | —— | 0.03 | 0.01 | 0.0015 | 0.01 |
| Ta2.5W | Remain | 0.005 | 0.005 | 0.002 | 3 | 0.01 | 0.002 | 0.04 | 0.02 | 0.01 | 0.0015 | 0.01 | |
| Ta10W | Remain | 0.005 | 0.005 | 0.002 | 11 | 0.01 | 0.002 | 0.04 | 0.02 | 0.01 | 0.0015 | 0.01 | |
Mechanical properties Of Tantalum Tungsten Alloy Rod:
| Alloy Grade | Test temperature (℃) | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
| RO5200 | 21 | 172 | 138 | 25 |
| TaW2.5 | 21 | 276 | 193 | 20 |
| TaW7.5 | 21 | 569.4 | 336.1 | 26 |
| TaW10 | 21 | 548.8 | 459.6 | 25 |
| Alloy Grade | Sulfuric acid concentration /% | Temperature ℃ | Corrosion Rate /mm·a-1 |
| RO5200 | 95.2 | 170 | 0.0101 |
| 200 | 0.0428 | ||
| TaW2.5 | 95.2 | 175 | 0.01174 |
| 200 | 0.03453 | ||
| TaW7.5 | 98 | 180 | 0.0076 |
| 209 | 0.033 |
Tantalum-tungsten alloy has excellent physical and chemical properties, such as high melting point and high density, good corrosion resistance and low-temperature plasticity. Therefore, it is widely used in many high-tech fields such as chemical industry, electronics, and aviation.
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