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PEEK
Our Top-Grade Portfolio of PEEK Materials
PEEK (Poly Ether Ether Ketone) Materials
ROC Carbon offers a portfolio of PEEK thermoplastic grades that provide good chemical resistance and excellent physical properties for applications including bearings and other parts. PEEK materials are available as finished parts per your specifications or as raw material blanks for machining.
General Properties
- Good chemical resistance to alkalis, aromatic hydrocarbons, halogenated hydrocarbons, alcohols, greases, and oils
- Self-lubricating
- Thermal stability
- Contamination resistance
- Mechanical strength
Raw Material Availability
Solid cylinders up to 20-inch diameter
Technical Support
Technical support is available to help select the proper grade for your application, and engineering services can be provided for designing the finished product.
Grades
| Grade | R-700 | R-710 | R-720 | R-721 | R-730 | R-740 |
| Filler | None | 15% PTFE | 15% glass | 30% glass | 30% carbon | 30% carbon/PTFE |
| Density, g/cc | 1.32 | 1.40 | 1.39 | 1.49 | 1.40 | 1.44 |
| Hardness, HRR | 126 | 124* | 124 | 124 | 124 | 124 |
| Tensile strength, psi | 14,500 | 11,000 | 17,800 | 24,500 | 32,700 | 19,000 |
| Shear strength, psi | 7,700 | N/A | N/A | 14,000 | 14,000 | N/A |
| Flexural strength, psi | 24,700 | 19,000 | 26,000 | 33,500 | 51,000 | 30,450 |
| Temperature limit, °F | 500 | 500 | 500 | 500 | 500 | 500 |
| Coefficient of friction** | 0.34 | 0.11 | N/A | N/A | 0.28 | 0.11 |
Values given are typical properties, not guaranteed minimum values.
* Estimated value (actual Shore 88)
**Friction coefficients are measured under specific test conditions. Actual values will vary with different operating parameters.
