- 密度 [g/cm3]: 0.4
- 吸水率 [%]: 2.0
- 弯曲强度 [MPa]: 1.7
- 脆化温度 [℃]: -16.0
Physical Properties | Metric | English | Comments |
---|---|---|---|
Density | 0.400 g/cc | 0.0145 lb/in³ | ±10%; ASTM D3574A |
Water Absorption | 2.0 % | 2.0 % | Typical per AMS 3568 |
Water Absorption at Saturation | 6.0 % | 6.0 % | Immersion; ASTM D570 |
Mechanical Properties | Metric | English | Comments |
Hardness, Shore A | 53 | 53 | ASTM D2240 |
Hardness, Shore O | 63 | 63 | ASTM D2240 |
Tensile Strength, Ultimate | >= 1.70 MPa | >= 247 psi | ASTM D3574E |
Elongation at Break | >= 50 % | >= 50 % | ASTM D3574E |
Compressive Yield Strength | 0.345 - 0.896 MPa | 50.0 - 130 psi | at 25% deflection; 0.2"/min strain rate |
Tear Strength | >= 3.30 kN/m | >= 18.8 pli | Die C; ASTM D624 |
Compression Set | <= 5.0 % | <= 5.0 % | 23°C; ASTM D1667 test D |
<= 10 % @Temperature 70.0 °C | <= 10 % @Temperature 158 °F | ASTM D3574 test D | |
<= 10 % @Temperature 121 °C | <= 10 % @Temperature 250 °F | Test D after autoclaved 5 hrs.; ASTM D3574J | |
Electrical Properties | Metric | English | Comments |
Electrical Resistivity | 7.00e+12 ohm-cm | 7.00e+12 ohm-cm | ASTM D257 |
Surface Resistance | 3.00e+12 ohm | 3.00e+12 ohm | ASTM D257 |
Dielectric Constant | 1.6 | 1.6 | K' ("DK"); ASTM D150; relative humidity 50% for 24 hrs. |
Dielectric Strength | 2.00 kV/mm | 50.8 kV/in | ASTM D149 |
Dissipation Factor | 0.050 | 0.050 | tan D ("DF"); ASTM D150 |
Thermal Properties | Metric | English | Comments |
CTE, linear | 230 - 310 µm/m-°C @Temperature 20.0 °C | 128 - 172 µin/in-°F @Temperature 68.0 °F | ASTM C518 |
Maximum Service Temperature, Air | 90.0 °C | 194 °F | Recommended continuous use |
121 °C | 250 °F | Intermittent | |
Brittleness Temperature | -16.0 °C | 3.20 °F | Low temp embrittlement; ASTM D746 |