铅,线, Pb, 0.25mm直径, As Drawn Temper
| 品牌: | Goodfellow | | 纯度含量: | 99.95% | | 产地: | 英国 |
产品介绍
| 订货号 | 包装规格 | | Length (Round) | | 312-965-51 | 1m | | 657-837-84 | 2m | | 105-559-27 | 5m | | 660-081-67 | 10m | | 119-302-84 | 20m | | 174-912-67 | 50m | | 824-051-43 | 100m |
产品参数 | Diameter[直径] | 0.25mm | | Length[长度] | 1m - 100m | | Purity[纯度] | 99.95% | | Temper[状态] | As Drawn | | Typical Analysis(典型分析) | | Ag | 20 PPM | | Bi | 100 PPM | | Cd | 2 PPM | | Cu | 20 PPM | | Fe | 2 PPM | | Mg | <1 PPM | | Sn | 70 PPM | | Tl | 5 PPM | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 29.000 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 862 | | Latent heat of fusion ( J g⁻¹ ) | 23.20 | | Melting point ( C ) | 327.50 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 159.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 35.30 @0-100℃ | | Atomic Properties(原子属性) | | Atomic number | 82 | | Atomic weight ( amu ) | 207.20000 | | Crystal structure | Face Centred Cubic | | Electronic structure | Xe4f¹⁴5d¹⁰6s²6p² | | Ionisation potential ( No./eV ) | 5 / 68.8 | | Ionisation potential ( No./eV ) | 3 / 31.9 | | Ionisation potential ( No./eV ) | 4 / 42.3 | | Ionisation potential ( No./eV ) | 2 / 15.03 | | Ionisation potential ( No./eV ) | 1 / 7.42 | | Natural isotope distribution ( Mass No./% ) | 207 / 22.1 | | Natural isotope distribution ( Mass No./% ) | 208 / 52.4 | | Natural isotope distribution ( Mass No./% ) | 206 / 24.1 | | Natural isotope distribution ( Mass No./% ) | 204 / 1.4 | | Photo-electric work function ( eV ) | 4.00 | | Thermal neutron absorption cross-section ( Barns ) | 0.1800 | | Valences shown | 2 , 4 | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 20.6@20℃ | | Superconductivity critical temperature ( K ) | 7.1960 | | Temperature coefficient ( K⁻¹ ) | 0.00420 @0-100℃ | | Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | 0.44 | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Polycrystalline ) | 45.8 | | Bulk modulus ( GPa ) ( Sand cast ) | 45.8 | | Hardness - Mohs ( Sand cast ) | 1.50 | | Material condition | Polycrystalline | | Material condition | Sand Cast | | Poisson's ratio ( Polycrystalline ) | 0.440 | | Poisson's ratio ( Sand cast ) | 0.440 | | Tensile modulus ( GPa ) ( Polycrystalline ) | 16.10 | | Tensile modulus ( GPa ) ( Sand cast ) | 16.10 | | Tensile strength ( MPa ) ( Sand cast ) | 12.00 | | Yield strength ( MPa ) ( Sand cast ) | 5.5 | | Physical Properties(物理性质) | | Boiling point ( C ) | 1740 | | Density ( g cm⁻³ ) | 11.350 @20 |
其他参数 公差 
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