聚甲醛共聚物,棒, Acetal, Copolymer POMC, Red, 25mm直径
关注：924
品牌：Goodfellow
产地：英国
| 订货号 | 包装规格 |
| Length (Round) | |
| 540-434-88 | 200 mm |
| 896-638-33 | 500 mm |
| 327-696-69 | 1000 mm |
产品参数
| Colour[颜色] | Red |
| Diameter[直径] | 25mm |
| Length[长度] | 200 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% |
产品发布日期：2025.03.18
Goodfellow（顾特服）