Very limited stock available.
| 订货号 | 包装规格 |
| Length (Round) |
| 217-326-56 | 100mm |
| 776-938-33 | 200mm |
| 677-685-76 | 500mm |
产品参数
| Diameter[直径] | 55mm |
| Length[长度] | 100mm - 500mm |
| Production Method[生产方法] | Cast |
| Physical Properties(物理性质) |
| Abbe number | 57.2 |
| Density ( g cm⁻³ ) | 1.190 |
| Flammability | HB |
| Limiting oxygen index ( % ) | 17 - 20 |
| Radiation resistance | Fair |
| Refractive index | 1.490 |
| Resistance to Ultra-violet | Good |
| Water absorption - over 24 hours ( % ) | 0.200 |
| Mechanical Properties(机械性能) |
| Elongation at break ( % ) | 2.5 -4.0 |
| Hardness - Rockwell | M92-100 |
| Izod impact strength ( J m⁻¹ ) | 16.0 - - 32.0 |
| Poisson's ratio | 0.350 - 0.400 |
| Tensile modulus ( GPa ) | 2.40 - 3.30 |
| Tensile strength ( MPa ) | 80.00 |
| Electrical Properties(电气特性) |
| Dielectric constant @1MHz | 3 |
| Dielectric strength ( kV mm⁻¹ ) | 15.0 |
| Dissipation factor @ 1MHz | 0.0140 |
| Surface resistivity ( Ohm/sq ) | 10¹⁴ |
| Volume resistivity ( Ohmcm ) | 2-14x10¹⁵ |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 70.000 - 77.000 |
| Heat-deflection temperature - 0.45MPa ( C ) | 105 |
| Heat-deflection temperature - 1.8MPa ( C ) | 95.0 |
| Lower working temperature ( C ) | -40 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 1400.0 - 1500.0 |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.17 - 0.19 @23℃ |
| Upper working temperature ( C ) | 50 - 90 |
| Chemical Resistance(耐化学性) |
| Acids - concentrated | Good-Poor |
| Acids - dilute | Good-Poor |
| Alcohols | Good-Poor |
| Alkalis | Good |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Poor |
| Halogens | Poor |
| Ketones | Poor |
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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