聚酰胺聚酰亚胺,球体, PAI, 3.18mm 直径
关注：2256
品牌：Goodfellow
产地：英国
| 订货号 | 包装规格 |
| 681-763-01 | 20 Piece |
| 220-386-34 | 50 Piece |
| 548-294-91 | 100 Piece |
| 536-869-41 | 200 Piece |
产品参数
| Diameter[直径] | 3.18mm |
| Grade[等级] | Torlon® 4203L |
| Quantity[数量] | 20 Piece - 200 Piece |
| Sphericity[球面] | 25.4μm |
| Type[类型] | Precision Sphere |
| Physical Properties(物理性质) | |
| Density ( g cm⁻³ ) | 1.420 - 1.460 |
| Flammability | V-0 |
| Limiting oxygen index ( % ) | 44 - 45 |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Good |
| Water absorption - equilibrium ( % ) | 3.00 - 4.00 |
| Water absorption - over 24 hours ( % ) | 0.300 |
| Chemical Resistance(耐化学性) | |
| Acids - concentrated | Fair-Poor |
| Acids - dilute | Fair |
| Alcohols | Good-Poor |
| Alkalis | Poor |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Good-Poor |
| Ketones | Good |
| Mechanical Properties(机械性能) | |
| Elongation at break ( % ) | 7.0 -15.0 |
| Hardness - Rockwell | E72-86 |
| Izod impact strength ( J m⁻¹ ) | 60.0 - 140.0 - Notched |
| Poisson's ratio | 0.380 |
| Tensile modulus ( GPa ) | 4.50 - 6.80 |
| Tensile strength ( MPa ) | 110.00 - 190.00 |
| Thermal Properties(热性能) | |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 25.000 - 31.000 |
| Heat-deflection temperature - 1.8MPa ( C ) | 278.0 - 9.0 |
| Lower working temperature ( C ) | <= -200 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 1000.0 |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.26 - 0.54 @23℃ |
| Upper working temperature ( C ) | 200 - 260 |
| Electrical Properties(电气特性) | |
| Dielectric constant @1MHz | 4 - 5 |
| Dielectric strength ( kV mm⁻¹ ) | 23.0 at 1mm |
| Dissipation factor @ 1MHz | 0.0300 - 0.0420 |
| Surface resistivity ( Ohm/sq ) | 8-50x10¹⁷ |
| Volume resistivity ( Ohmcm ) | 0.08-2x10¹⁷ |
| Pultrusion(挤拉成型) | |
| Compressive strength ( MPa ) | 170 -220 |
其他参数
公差
| 直径 | ±5% |
|---|
产品发布日期：2026.01.24
Goodfellow（顾特服）