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Properties
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- Note
- 1 The figures given for these properties are for the most part derived from raw material supplier data and other publications.
- 2Values for this property are only given here for amorphous materials and for materials that do not show a melting temperature (PBI & PI).
- 3Temperature resistance over a period of min. 20,000 hours. After this period of time, there is a decrease in tensile strength - measured at 23 °C - of about 50 % as compared with the original value. The temperature value given here is thus based on the thermal-oxidative degradation which takes place and causes a reduction in properties. Note, however, that the maximum allowable service temperature depends in many cases essentially on the duration and the magnitude of the mechanical stresses to which the material is subjected.
- 4 Impact strength decreasing with decreasing temperature, the minimum allowable service temperature is practically mainly determined by the extent to which the material is subjected to impact. The value given here is based on unfavorable impact conditions and may consequently not be considered as being the absolute practical limit.
- 5 These estimated ratings, derived from raw material supplier data and other publications, are not intended to reflect hazards presented by the material under actual fire conditions. There is no ‘UL File Number’ available for these stock shapes.
- 6 Most of the figures given for the mechanical properties are average values of tests run on dry test specimens machined out rods 40-60 mm when available, else out of plate 10-20mm. All tests are done at room temperature (23° / 73°F)
- 7 Test speed: either 5 mm/min or 50 mm/min [chosen acc. to ISO 10350-1 as a function of the ductile behavior of the material (tough or brittle)] using type 1B tensile bars
- 9 Test speed: 1 mm/min, using type 1B tensile bars
- 10 Test specimens: cylinders Ø 8 mm x 16 mm, test speed 1 mm/min
- 11 Test specimens: cylinders Ø 0.5" x 1", or square 0.5" x 1", test speed 0.05"/min
- 12 Test specimens: bars 4 mm (thickness) x 10 mm x 80 mm ; test speed: 2 mm/min ; span: 64 mm.
- 14 Measured on 10 mm, 0.4" thick test specimens.
- 15 Electrode configuration: Æ 25 / Æ 75 mm coaxial cylinders ; in transformer oil according to IEC 60296 ; 1 mm thick test specimens.
- 16 Measured on disks Ø 50 mm x 3 mm.
- 17 Measured on 1/8" thick x 2" diameter or square
- 18 Test procedure similar to Test Method A: “Pin-on-disk” as described in ISO 7148-2, Load 3MPa, sliding velocity= 0,33 m/s, mating plate steel Ra= 0.7-0.9 μm, tested at 23°C, 50%RH.
- 20 Test using Plastic Thrust Washer rotating against steel, 20 ft/min and 250 PSI, Stationary steel washer roughness 16±2 RMS
micro inches with Rockwell C 20-24
| Value | Units | Test Method / Conditions | |
| Tensile Strength ā¶ | 83.0 | MPa | ISO 527-1/-2 ā· |
| Tensile Strain (elongation, at yield) ā¶ | 8.0 | % | ISO 527-1/-2 ā· |
| Tensile Strain (elongation, at break) ā¶ | 50.0 | % | ISO 527-1/-2 ā· |
| Tensile Modulus of Elasticity ā¶ | 2450.0 | MPa | ISO 527-1/-2 ā¹ |
| Shear Strength ā¶ | 62.0 | psi | |
| Compressive Stress (at 1% nominal strain) ā¶ | 21.0 | MPa | ISO 604 Ā¹ā° |
| Compressive Stress (at 2% nominal strain) ā¶ | 41.0 | MPa | ISO 604 Ā¹ā° |
| Compressive Stress (at 5% nominal strain) ā¶ | 83.0 | MPa | ISO 604 Ā¹ā° |
| Compressive Strength ā¶ | 13400.0 | psi | ASTM D695 Ā¹Ā¹ |
| Charpy Impact Strength - Unnotched ā¶ | no break | kJ/mĀ² | ISO 179-1/1eU |
| Charpy Impact Strength - Notched ā¶ | 12.0 | kJ/mĀ² | ISO 179-1/1eA |
| Izod Impact Notched ā¶ | 2.5 | ft.lb./in | ASTM D256 |
| Flexural Strength ā¶ | 108.0 | MPa | ISO 178 (12) |
| Flexural Modulus of Elasticity ā¶ | 345.0 | ksi | ASTM D790 |
| Rockwell M Hardness ā¶ Ā¹ā“ | 90.0 | - | ISO 2039-2 |
| Rockwell R Hardness ā¶ Ā¹ā“ | 120.0 | - | ASTM 2240 |
| Value | Units | Test Method / Conditions | |
| Glass Transition Temperature (DMA - Tan Ī“) Ā¹ Ā² | 220.0 | Ā°C | - |
| Thermal Conductivity (at 23Ā°C) Ā¹ | 0.3 | W/(K.m) | - |
| Coefficient of Linear Thermal Expansion (at -40 to 150 Ā°C) Ā¹ | 31.0 | Ī¼in./in./Ā°F | ASTM E-831 (TMA) |
| Coefficient of Linear Thermal Expansion (at 23 to 60Ā°C) Ā¹ | 55.0 | Ī¼m/(m.K) | - |
| Coefficient of Linear Thermal Expansion (at 23 to 100Ā°C) Ā¹ | 55.0 | Ī¼m/(m.K) | - |
| Coefficient of Linear Thermal Expansion (above 150Ā°C) Ā¹ | 65.0 | Ī¼m/(m.K) | - |
| Heat Deflection Temperature (method A, 1.8 MPa) Ā¹ | 205.0 | Ā°C | ISO 75-1/-2 |
| Continuous Allowable Service Temperature in Air (for 20 hrs) Ā¹ Ā³ | 180.0 | Ā°C | - |
| Service Temperature Ā¹ ā“ | -50.0 | Ā°C | - |
| Flammability UL 94 (3 mm) Ā¹ āµ | V - 0 | - | - |
| Flammability Oxygen Index Ā¹ | 38.0 | % | ISO 4589-1/-2 |
| Value | Units | Test Method / Conditions | |
| Density | 1.29 | g/cmĀ³ | ISO 1183-1 |
| Specific Gravity | 1.29 | - | ASTM D792 |
| Water Absorption (after 24h immersion in water of 23 Ā°C) | 0.37 | % | ASTM D570 Ā¹ā· |
| Water Absorption (at saturation in water of 23 Ā°C) | 1.1 | % | - |
| Wear Rate | 2500.0 | Ī¼m/km | ISO 7148-2 Ā¹āø |
| Dynamic Coefficient of Friction (-) | 0.4 - 0.5 | - | ISO 7148-2 Ā¹āø |
| Value | Units | Test Method / Conditions | |
| Electric Strength | 26.0 | kV/mm | IEC 60243-1 Ā¹āµ |
| Volume Resistivity | 1 x 10Ā¹Ā³ | Ohm.cm | IEC 62631-3-1 |
| Surface Resistivity | 1 x 10Ā¹Ā² | Ohm/sq. | ANSI/ESD STM 11.11 |
| Dielectric Constant (at 1 MHz) | 3.4 | - | IEC 62631-2-1 |
| Dissipation Factor (at 1MHz) | 0.001 | - | IEC 62631-2-1 |
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