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.
| Niobium and niobium alloy rods, wire grades and standards |
| category | grade | standard |
| Rods, wires | R04200、R04210、R04251、R04261 | ASTM B392 standard |
| Capacitor grade Nb and Nb-Zr wire (annealed) mechanical properties |
| grade | Ultimate Tensile Strength, Min, psi (MPa) | Yield Strength, psi (MPa) | Elongation min. %, mm |
| Types 1 and 2 | 18 000 (125) | – | 20 |
| Types 3 and 4 | 28 000 (195) | – | 15 |
| Capacitor-grade niobium and niobium-zirconium wire processability |
| status | Bending time | Surface |
| Before Forge | ≥ 25 | The surface must be smooth, shiny, and free of stains, scratches, or other blemishes |
| After 1450°C±50°C, forge for 30 minutes | > 15 |
| Niobium and niobium alloy bars, wire sizes and tolerances |
| Diameter/inch (mm) | Tolerance/inch (mm) |
| 0.020 – 0.030 (0.51 – 0.76) | ±0.00075 （ ± 0.019） |
| 0.030 – 0.060 ( 0.76 – 1.52) | ±0.001 （ ± 0.025） |
| 0.060 – 0.090 (1.52 – 2.29) | ±0.0015 （ ± 0.038） |
| 0.090 – 0.125 (2.29 – 3.18) | ±0.002 （ ± 0.051） |
| 0.125 – 0.187 (3.18 – 4.75) | ±0.003 （ ± 0.076） |
| 0.187 – 0.375 (4.75 – 9.53) | ±0.004 （ ± 0.102） |
| 0.375 – 0.500 (9.53 – 12.7) | ±0.005 （± 0.127） |
| 0.500 – 0.625 (12.7 – 15.9) | ±0.007 （ ± 0.178） |
| 0.625 – 0.750 (15.9 – 19.1) | ±0.008 （ ± 0.203） |
| 0.750 – 1.000 (19.1 -25.4) | ±0.010 （ ± 0.254） |
| 1.000 – 1.500 (25.4 – 38.1) | ±0.015 （ ± 0.381） |
| Tolerances can be adjusted according to customer requirements |
Niobium wire application
Niobium wire has the advantages of high luminous efficiency, low power consumption, long service life and strong fog penetration, and is mainly used in the field of electric light source to make light-emitting village materials for high-pressure sodium lamps. Niobium wire is also used in chemical industry, superconducting materials, high-temperature metallurgy and other fields.
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