PEEK Grades
Standard Grade
This grade is for general applications with the highest elongation at break and the lowest values for tensile strength, flexural strength and flexural modulus. Pure PEEK™ has the best notch toughness values.
Grade filled with 30% glass fibers
Filling with glass fibers results in better mechanical values in terms of tensile strength, flexural strength and flexural modulus, but reduces the values for elongation at break and notch toughness, especially at low temperatures. PEEK™ filled with glass fibers has a lower coefficient of expansion and is therefore suitable for high-temperature applications.
Grade filled with 30% carbon fibers
Filling with carbon fibers results in better mechanical values in terms of tensile strength, flexural strength and flexural modulus, but reduces the values for elongation at break and notch toughness, especially at low temperatures. PEEK™ filled with carbon fibers has a very low coefficient of expansion and very good thermal conductivity.
Just lubricated
The addition of 30% carbon/PTFE improves the properties of PEEK™ with regard to friction and abrasion. This addition also increases machinability and makes this grade very suitable for the production of finished bearings.
Technical data
| Properties | Standard values | ||
| Grade | Standard | 30% glass fibers | 30% carbon fibers |
| Tensile strength (at 23°C) | 100 MPa | 150 MPa | 215 MPa |
| Modulus of elasticity (with 1% elongation at 23°C) | 3.5 GPa | 11.4 GPa | 22.3 GPa |
| Elongation at break (at 23°C) | 34% | 2% | 1.8% |
| Flexural strength (at 23°C) | 163 MPa | 212 MPa | 298 MPa |
| Notched impact strength (at23°C) | 7.5 kJ/m2 | 10.3 kJ/m2 | 5.4 kJ/m2 |
| Specific heat of fusion | 2.16 kJ/kg°C | 1.7 kJ/kg°C | 1.8 kJ/kg°C |
| Glass transition temperature | 143 °C | 143 °C | 143 °C |
| Deformation temperature | 152 °C | 315 °C | 315 °C |
| Expansion coefficient | < Tg 4.7 x 10-5/°C
> Tg 10.8 x 10-5/°C |
< Tg 1.5 x 10-5/°C | < Tg 1.5 x 10-5/°C |
| Continuous operating temperature electrical | 260 °C | 240 °C | — |
| Continuous operating temperature without mechanical stress | 240 °C | 240 °C | 240 °C |
| Continuous operating temperature with mechanical stress | 180 °C | 220 °C | 200 °C |
| Density | 1,0 | 1,51 | 1,40 |
| Water absorption | 0.50% (50% rh) | 0.11% (50% rh) | 0.06% (50% rh) |
| Light transmission | none | none | none |
| color | gray-brown | brown | black |
Dimensions
no stock items
| Item number | Inch dimensions | Metric dimensions [mm] | |||
| Inside Ø | Outer Ø | Inside Ø | Outer-Ø | Permissible pressure* | |
| ISPEEK003/020 | 0,003 | 0,020 | 0,076 | 0,508 | 2000 psi |
| ISPEEK005/020 | 0,005 | 0,020 | 0,127 | 0,508 | 2000 psi |
| ISPEEK010/020 | 0,010 | 0,020 | 0,254 | 0,508 | 2000 psi |
| ISPEEK003/062 | 0,003 | 0,062 | 0,076 | 1,575 | 5000 psi |
| ISPEEK005/062 | 0,005 | 0,062 | 0,127 | 1,575 | 5000 psi |
| ISPEEK007/062 | 0,007 | 0,062 | 0,178 | 1,575 | 5000 psi |
| ISPEEK010/062 | 0,010 | 0,062 | 0,254 | 1,575 | 5000 psi |
| ISPEEK020/062 | 0,020 | 0,062 | 0,508 | 1,575 | 5000 psi |
| ISPEEK030/062 | 0,030 | 0,062 | 0,762 | 1,575 | 5000 psi |
| ISPEEK040/062 | 0,040 | 0,062 | 1,016 | 1,575 | 5000 psi |
| ISPEEK055/062 | 0,055 | 0,062 | 1,397 | 1,575 | 5000 psi |
| ISPEEK062/125 | 0,062 | 0,125 | 1,575 | 3,175 | 5000 psi |
| ISPEEK080/125 | 0,080 | 0,125 | 2,032 | 3,175 | 3000 psi |
* Recommended maximum operating pressure
Now available in very thin wall configurations with wall thicknesses down to 0.051 mm for many sizes. +/- 0.25 mm (0.001″) tolerances available for most sizes.
