铌,棒, Nb, 12.7mm直径, Annealed Temper, 3N
关注：426
品牌：Goodfellow
产地：英国
纯度含量：99.9%
| 订货号 | 包装规格 |
| Length (Round) | |
| 510-779-65 | 50mm |
| 902-014-28 | 100mm |
| 751-783-45 | 200mm |
| 972-925-04 | 500mm |
产品参数
| Diameter[直径] | 12.7mm |
| Length[长度] | 50mm - 500mm |
| Purity[纯度] | 99.9% |
| Temper[状态] | Annealed |
| Typical Analysis(典型分析) | |
| Al | <10 PPM |
| B | 2 PPM |
| C | 25 PPM |
| Ca | <10 PPM |
| Co | <10 PPM |
| Cr | <10 PPM |
| Cu | <10 PPM |
| Fe | <10 PPM |
| H | <10 PPM |
| Mg | <10 PPM |
| Mn | <10 PPM |
| Mo | <10 PPM |
| N | 35 PPM |
| Ni | <10 PPM |
| O | 230 PPM |
| Si | <10 PPM |
| Sn | <10 PPM |
| Ta | 255 PPM |
| Ti | 20 PPM |
| W | <100 PPM |
| Zr | <10 PPM |
| Mechanical Properties(机械性能) | |
| Bulk modulus ( GPa ) ( Hard ) | 170.3 |
| Bulk modulus ( GPa ) ( Soft ) | 170.3 |
| Hardness - Vickers ( kgf mm⁻² ) ( Hard ) | 160 |
| Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 115 |
| Izod toughness ( J m⁻¹ ) ( Soft ) | 10 - 120 |
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio ( Hard ) | 0.397 |
| Poisson's ratio ( Soft ) | 0.397 |
| Tensile modulus ( GPa ) ( Hard ) | 104.90 |
| Tensile modulus ( GPa ) ( Soft ) | 104.90 |
| Tensile strength ( MPa ) ( Hard ) | 585.00 |
| Tensile strength ( MPa ) ( Soft ) | 330.00 |
| Yield strength ( MPa ) ( Hard ) | 550.0 |
| Yield strength ( MPa ) ( Soft ) | 240.0 |
| Atomic Properties(原子属性) | |
| Atomic number | 41 |
| Atomic weight ( amu ) | 92.90640 |
| Crystal structure | Body Centred Cubic |
| Electronic structure | Kr4d⁴5s¹ |
| Ionisation potential ( No./eV ) | 3 / 25.0 |
| Ionisation potential ( No./eV ) | 2 / 14.3 |
| Ionisation potential ( No./eV ) | 6 / 103 |
| Ionisation potential ( No./eV ) | 1 / 6.88 |
| Ionisation potential ( No./eV ) | 4 / 38.3 |
| Ionisation potential ( No./eV ) | 5 / 50.5 |
| Photo-electric work function ( eV ) | 4.30 |
| Thermal neutron absorption cross-section ( Barns ) | 1.1500 |
| Valences shown | 2 , 3, 4, 5 |
| Thermal Properties(热性能) | |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 7.200 @0-100℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 7360 |
| Latent heat of fusion ( J g⁻¹ ) | 290.00 |
| Melting point ( C ) | 2468.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 268.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 53.70 @0-100℃ |
| Electrical Properties(电气特性) | |
| Electrical resistivity ( μOhmcm ) | 16@20℃ |
| Superconductivity critical temperature ( K ) | 9.2500 |
| Temperature coefficient ( K⁻¹ ) | 0.00260 @0-100℃ |
| Physical Properties(物理性质) | |
| Boiling point ( C ) | 4742 |
| Density ( g cm⁻³ ) | 8.570 @20℃ |
其他参数
公差
| 直径 | ≤10mm | ±10% |
|---|---|---|
| 聚合物 | +20% / -10% | |
| 陶瓷 | +20% / -10% | |
| >10mm | ±5% | |
| 陶瓷 | +20% / -10% | |
| 聚合物 | +20% / -10% | |
| 长度 | <100mm | ±1mm |
| ≥100mm | +5% / -1% |
产品发布日期：2024.05.15
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