材料 >> 聚合物材料
聚甲醛均聚物,棒, Acetal, Homopolymer POMH, White, 50mm直径
半岛bd体育手机客户端 介绍
| 订货号 |
包装规格 |
| Length (Round) |
| 750-000-68 |
100 mm |
| 750-078-29 |
200 mm |
| 759-778-81 |
500 mm |
| 972-360-74 |
1000 mm |
半岛bd体育手机客户端 参数
| Colour[颜色] |
White |
| Diameter[直径] |
50mm |
| Length[长度] |
100 mm - 1000 mm |
| Mechanical Properties(机械性能) |
| Coefficient of friction |
0.20 - 0.35 |
| Elongation at break ( % ) |
40.0 -75.0 |
| Hardness - Rockwell |
M94 |
| Izod impact strength ( J m?? ) |
75.0 - - 130.0 |
| Poisson's ratio |
0.350 |
| Tensile modulus ( GPa ) |
2.90 - 3.10 |
| Tensile strength ( MPa ) |
70.00 |
| Physical Properties(物理性质) |
| Density ( g cm?? ) |
1.420 |
| Flammability |
HB |
| Limiting oxygen index ( % ) |
15 |
| Radiation resistance |
Poor |
| Resistance to Ultra-violet |
Poor |
| Water absorption - equilibrium ( % ) |
0.60 - 0.90 |
| Water absorption - over 24 hours ( % ) |
0.250 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
122.000 |
| Heat-deflection temperature - 0.45MPa ( C ) |
170 |
| Heat-deflection temperature - 1.8MPa ( C ) |
135.0 |
| Specific heat ( J K?? kg?? ) |
1500.0 |
| Thermal conductivity ( W m?? K?? ) |
0.22 - 0.24 @23℃ |
| Upper working temperature ( C ) |
80 - 120 |
| Electrical Properties(电气特性) |
| Dielectric constant @1MHz |
4 |
| Dielectric strength ( kV mm?? ) |
20.0 |
| Dissipation factor @ 1MHz |
0.0050 |
| Surface resistivity ( Ohm/sq ) |
10?? |
| Volume resistivity ( Ohmcm ) |
10?? |
| Chemical Resistance(耐化学性) |
| Acids - concentrated |
Poor |
| Acids - dilute |
Poor-Fair |
| Alcohols |
Good-Fair |
| Alkalis |
Poor |
| Aromatic hydrocarbons |
Good |
| Greases and Oils |
Good |
| Halogenated Hydrocarbons |
Good-Poor |
| Halogens |
Poor |
| Ketones |
Good-Fair |
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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