半岛bd体育手机客户端
介绍 | 订货号 | 包装规格 | | 648-398-31 | 10 Piece | | 975-660-03 | 20 Piece | | 324-743-92 | 50 Piece |
半岛bd体育手机客户端
参数 | Diameter[直径] | 0.35mm | | Quantity[数量] | 10 Piece - 50 Piece | | Sphericity[球面] | 0.625μm | | Surface Finish[表面光洁度] | Polished | | Type[类型] | Precision Sphere | | Pultrusion(挤拉成型) | | Compressive strength ( MPa ) | 1100 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good | | Acids - dilute | Good | | Alkalis | Fair | | Halogens | Good | | Metals | Fair | | Physical Properties(物理性质) | | Apparent porosity ( % ) | 0.00 | | Density ( g cm⁻³ ) | 2.200 | | Refractive index | 1.460 | | Useful optical transmission range | 180 - 2500 nm | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 0.540 @20-1000 | | Melting point ( C ) | 1715.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 670.0 - 740.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 1.46 @20℃ | | Upper continuous use temperature ( C ) | 1100 - 1400 | | Electrical Properties(电气特性) | | Dielectric constant | 3.8 | | Dielectric strength ( kV mm⁻¹ ) | 25.0 - 40.0 | | Volume resistivity ( Ohmcm ) | 10¹⁸@25℃ | | Mechanical Properties(机械性能) | | Hardness - Knoop ( kgf mm⁻² ) | 820 | | Hardness - Vickers ( kgf mm⁻² ) | 1000 | | Shear strength ( MPa ) | 70 | | Tensile modulus ( GPa ) | 72.00 - 74.00 | | Tensile strength ( MPa ) | 48.00 |
其他参数 公差
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