ROC

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, seals and other parts. Material grades 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.