产品介绍 | 订货号 | 包装规格 | | 830-805-93 | 50 Piece | | 850-739-79 | 100 Piece | | 342-466-94 | 200 Piece | | 808-363-64 | 500 Piece |
产品参数 | Diameter[直径] | 3.18mm | | Quantity[数量] | 50 Piece - 500 Piece | | Sphericity[球面] | 12.7μm | | Type[类型] | Precision Sphere | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 1.140 | | Flammability | HB | | Limiting oxygen index ( % ) | 23 | | Radiation resistance | Fair | | Refractive index | 1.530 | | Resistance to Ultra-violet | Poor | | Water absorption ( % ) | 8.50 | | Water absorption - equilibrium ( % ) | 8.00 | | Water absorption - over 24 hours ( % ) | 2.300 | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 3 | | Dielectric strength ( kV mm⁻¹ ) | 25.0 | | Dissipation factor @ 1kHz | 0.2000 | | Surface resistivity ( Ohm/sq ) | 10¹¹ | | Volume resistivity ( Ohmcm ) | 10¹³ | | Mechanical Properties(机械性能) | | Abrasive resistance - ASTM D1044 ( mg/1000 cycles ) | 3 - 5 | | Coefficient of friction | 0.20 - 0.30 | | Elongation at break ( % ) | 40.0 | | Hardness - Rockwell | M89 | | Izod impact strength ( J m⁻¹ ) | 40.0 - 110.0 | | Poisson's ratio | 0.410 | | Tensile modulus ( GPa ) | 3.30 | | Tensile strength ( MPa ) | 82.00 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 90.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 200 | | Heat-deflection temperature - 1.8MPa ( C ) | 100.0 | | Lower working temperature ( C ) | -30 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1670.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.25 @23℃ | | Upper working temperature ( C ) | 80 - 180 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Poor | | Acids - dilute | Poor | | Alcohols | Good | | Alkalis | Good-Fair | | Aromatic hydrocarbons | Good | | Greases and Oils | Good | | Halogenated Hydrocarbons | Good-Poor | | Halogens | Poor | | Ketones | Good |
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