 PEEK®—551G | ||||
| Test Item | Test Standard | Test Conditions | Unit | Test Data |
| Mechanical Properties | ||||
| Tensile Strength | ISO 527 | Yield, 23°C | MPa | 100 |
| Elongation at Break | ISO 527 | Fracture, 23°C | % | 40 |
| Flexural Strength | ISO 178 | Yield, 23°C | MPa | 170 |
| Flexural Modulus | ISO 178 | 23°C | GPa | 4.2 |
| Compressive Strength | ISO 604 | 23°C | MPa | 125 |
| Impact Strength of Simply Supported Beam | ISO 179/1eA | Notched | kJ m-2 | 6 |
| ISO 179/1U | Unnotched | kJ m-2 | - | |
| Impact Strength of Cantilever Beam | ISO 180/A | Notched | kJ m-2 | 6.5 |
| ISO 180/U | Unnotched | kJ m-2 | - | |
| Forming Shrinkage Rate | ISO 294-4 | Parallel to flow direction | % | 1 |
| Perpendicular to flow direction | % | 1.3 | ||
| Thermal Performance | ||||
| Melting point | ISO 11357 | - | ℃ | 343 |
| Glass transition temperature | ISO 11357 | Initial | ℃ | 143 |
| Specific heat capacity | DSC | 23°C | kJ kg-1 ℃-1 | 2.2 |
| Thermal expansion coefficient | ISO 11359 | Below Tg along flow direction | ppm K-1 | 45 |
| Above Tg along flow direction | ppm K-1 | 120 | ||
| Heat deflection temperature | ISO 75-f | 1.8 Mpa | ℃ | 152 |
| Thermal conductivity | ISO 22007-4 | 23℃ | W m-1 K-1 | 0.29 |
| Liquidity | ||||
| Melt Index | ISO 1133 | 380℃, 5kg | g 10min-1 | 14 |
| Others | ||||
| Density | ISO 1183 | Crystalline | g cm-3 | 1.3 |
| Non-crystalline | g cm-3 | 1.26 | ||
| Shore D Hardness | ISO 868 | 23°C | 85 | |
| Water Absorption Rate (3.2mm Thick Tensile Rod) (Immersion Test) | ISO 62-1 | 24 hours, 23°C | % | 0.07 |
| Equilibrium, 23°C | % | 0.4 | ||
| Electrical Properties | ||||
| Dielectric Strength | IEC 60243-1 | 2mm | kV mm-1 | 23 |
| Compared to Tracking Index | IEC 60112 | - | V | 150 |
| Dielectric Constant | IEC 60250 | 23℃, 1kHz | - | 3.2 |
| 23℃, 50Hz | - | 4.5 | ||
| Tangent of Loss | IEC 60250 | 23℃, 1MHz | - | 0.003 |
| Volume Resistivity | IEC 60093 | 23℃, 1V | Ω cm | 1016* |
| 275℃ | Ω cm | 109 * | ||
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