钴,棒, Co, 2mm 直径, Hard Temper, 4N
| 品牌: | Goodfellow | | 纯度含量: | 99.99% | | 产地: | 英国 |
产品介绍
| 订货号 | 包装规格 | | Length (Round) | | 682-191-74 | 25 mm | | 768-429-84 | 50 mm | | 863-737-60 | 100 mm | | 171-027-64 | 200 mm |
产品参数 | Diameter[直径] | 2mm | | High Purity[纯度] | 99.99% | | Length[长度] | 25 mm - 200 mm | | Temper[状态] | Hard | | Typical Analysis(典型分析) | | Ag | 2 PPM | | Al | 1 PPM | | Bi | <1 PPM | | Ca | 1 PPM | | Cr | <1 PPM | | Cu | 3 PPM | | Fe | 7 PPM | | Mg | 1 PPM | | Mn | <1 PPM | | Ni | 2 PPM | | Si | 5 PPM | | Sn | 1 PPM | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 6.34@20℃ | | Temperature coefficient ( K⁻¹ ) | 0.00660 @0-100℃ | | Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | -1.33 | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Hard ) | 181.5 | | Bulk modulus ( GPa ) ( Soft ) | 181.5 | | Hardness - Vickers ( kgf mm⁻² ) ( Hard ) | 320 | | Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 170 | | Material condition | Hard | | Material condition | Soft | | Poisson's ratio ( Hard ) | 0.320 | | Poisson's ratio ( Soft ) | 0.320 | | Tensile modulus ( GPa ) ( Hard ) | 211.00 | | Tensile modulus ( GPa ) ( Soft ) | 211.00 | | Tensile strength ( MPa ) ( Hard ) | 1135.00 | | Tensile strength ( MPa ) ( Soft ) | 760.00 | | Yield strength ( MPa ) ( Soft ) | 345.0 - 485.0 | | Atomic Properties(原子属性) | | Atomic number | 27 | | Atomic weight ( amu ) | 58.93320 | | Crystal structure | Hexagonal Close Packed | | Electronic structure | Ar3d⁷4s² | | Ionisation potential ( No./eV ) | 2 / 17.06 | | Ionisation potential ( No./eV ) | 4 / 51.3 | | Ionisation potential ( No./eV ) | 3 / 33.5 | | Ionisation potential ( No./eV ) | 1 / 79.5 | | Ionisation potential ( No./eV ) | 1 / 7.86 | | Ionisation potential ( No./eV ) | 6 / 102 | | Photo-electric work function ( eV ) | 5.00 | | Thermal neutron absorption cross-section ( Barns ) | 37.5000 | | Valences shown | 2 , 3 | | Physical Properties(物理性质) | | Boiling point ( C ) | 2870 | | Density ( g cm⁻³ ) | 8.900 @20℃ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 12.500 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 6490 | | Latent heat of fusion ( J g⁻¹ ) | 263.00 | | Melting point ( C ) | 1495.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 456.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 100.00 @0-100℃ |
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% |
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