聚甲醛共聚物,棒, Acetal, Copolymer POMC, Natural, 20mm直径
产品介绍
| 订货号 | 包装规格 | | Length (Round) | | 540-809-28 | 100 mm | | 553-788-84 | 200 mm | | 672-276-00 | 500 mm | | 185-142-23 | 1000 mm |
产品参数 | Colour[颜色] | Natural | | Diameter[直径] | 20mm | | Length[长度] | 100 mm - 1000 mm | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 4 - 4 | | Dielectric strength ( kV mm⁻¹ ) | 20.0 @2.3mm | | Dissipation factor @ 1MHz | 0.0060 - 0.1800 | | Surface resistivity ( Ohm/sq ) | 10¹⁵ | | Volume resistivity ( Ohmcm ) | 10¹⁵ | | Chemical Resistance(耐化学性) | | Acids - concentrated | Poor | | Acids - dilute | Good-Fair | | Alcohols | Good-Fair | | Alkalis | Good | | Aromatic hydrocarbons | Good | | Greases and Oils | Good | | Halogenated Hydrocarbons | Good-Poor | | Halogens | Poor | | Ketones | Good-Fair | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 80.000 - 120.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 160 | | Heat-deflection temperature - 1.8MPa ( C ) | 110.0 | | Lower working temperature ( C ) | -40 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1500.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.23 - 0.30 @23℃ | | Upper working temperature ( C ) | 80 - 120 | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 1.410 | | Flammability | HB | | Limiting oxygen index ( % ) | 15 | | Radiation resistance | Poor | | Resistance to Ultra-violet | Poor | | Water absorption - equilibrium ( % ) | 0.60 - 0.80 | | Water absorption - over 24 hours ( % ) | 0.200 - 0.250 | | Mechanical Properties(机械性能) | | Elongation at break ( % ) | 15.0 -40.0 | | Hardness - Rockwell | M80 | | Izod impact strength ( J m⁻¹ ) | 70.0 - - 80.0 | | Poisson's ratio | 0.350 | | Tensile modulus ( GPa ) | 2.30 - 2.80 | | Tensile strength ( MPa ) | 60.00 - 70.00 |
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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