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High Performance > 300°F | Polyetheretherketone (PEEK)

TECAPEEK ST high temperature PEEK

TECAPEEK® ST is a multipurpose semi-crystaline material from the polyaryletherketone family based on PEKEKK that features improved mechanical properties at higher temperatures. The benefits of TECAPEEK® ST compared to standard TECAPEEK® are that of a higher heat distortion temperature (HDT), better strength and stiffness of machined components and a higher flexural strength combined with a higher glass transition point.

  • Excellent mechanical properties at higher temperatures
  • High heat distortion temperature
  • Excellent chemical resistance
  • Low moisture absorption
  • Electrically insulating
  • Easy to machine (unfilled)
  • Good dimensional stability
  • High purity

Target industries for TECAPEEK® ST are Oil and Gas, Semiconductor, Chemical and Automotive, crude petroleum extraction and drilling. Possible applications include turbocharger impellers, seal rings and other down hole parts, gears, and test sockets.

  Properties Condition Units Value
Physical Chemical Designation PEEK
Filler
Density g/cm3 1.32
Mechanical Tensile Modulus @ 73 °F PSI 760,000
Tensile Strength @ Yld @ 73 °F PSI 19,400
Tensile Strength @ Brk @ 73 °F PSI 19,400
Shear Strength @ 73 °F PSI
Elongation @ Yld @ 73 °F % 5
Elongation @ Brk @ 73 °F % 15
Flexural Modulus @ 73 °F PSI 740,000
Flexural Strength @ 73 °F PSI 31,000
Compressive Modulus @ 73 °F PSI 445,000
Compressive Strength @ 73 °F, 10% strain PSI 24,400
Izod (charpy) Impact Strength @ 73 °F ft-lbs/in 0.8
Rockwell Hardness @ 73 °F M (R) Scale (112)
Coefficient of Friction Static
Coefficient of Friction Dynamic, 40 PSI, 50 FPM
Wear (K) Factor in3-min/ft-lbs-hr
Limiting PV psi-fpm
Thermal Vicat Softening Point °F
Melting Temperature °F 729
Heat Deflection Temperature @ 66 °F
Heat Deflection Temperature @ 264 °F 342
Service Temperature Intermittent °F 572
Service Temperature Long Term °F 500
Thermal Expansion (CLTE) in/in/°F 2.72*10-5
Specific Heat BTU/lb-°F
Thermal Conductivity BTU-in/hr-ft2-°F
Electrical Surface Resistivity ohms/square 1.0*1014
Volume Resistivity ohm-cm >1015
Dielectric Strength V/mil
Dielectric Contant @ 60 HZ, 73 °F, 50% RH
Dissipation Factor @ 60 Hz, 73 °F
Other Moisture Absorption @ 24 hrs, 73 °F % 0.02
Moisture absorption @ Saturation, 73 °F % 0.05
Flammability UL 94 V-0
Food Grade N
Relative Cost $$ $$ $$ $