O-Ring Material Temperature Guide

Recommended O-ring application service temperature limits for basic polymer types.

O-Ring Temperature Ranges

Degrees in Fahrenheit (F◦)Degrees in Celsius  (C◦)Polymer Type
    25° to 450°  - 4° to 232°AFLAS
  - 75° to 250°- 59° to 120°Butyl
  - 70° to 250°- 57° to 121°Ethylene Propylene
  - 15° to 400°- 26° to 205°Fluorocarbon
- 100° to 350°- 73° to 177°Fluorosilicone
  - 15° to 400°- 26° to 205°Hifluor
  - 23° to 300°- 32° to 149°Hydrogenated Nitrile
  - 35° to 225°- 37° to 107°Neoprene
  - 30° to 250°- 34° to 121°Nitrile (General Service)
  - 65° to 225°- 55° to 107°Nitrile (Low Temperature)
  - 15° to 500°- 26° to 260°Perfluoroelastomer (Parofluor)
    - 5° to 350°- 21° to 177°Polyacrylate
  - 40° to 180°- 40° to  82°Polyurethane
  - 65° to 450°- 54° to 232°Silicone

Source:  Parker Hannifin

Remember:  Always test under actual service conditions!

Degrees in Fahrenheit (F◦)Degrees in Celsius  (C◦)Polymer Type
    25° to 450°  - 4° to 232°AFLAS
  - 75° to 250°- 59° to 120°Butyl
  - 70° to 250°- 57° to 121°Ethylene Propylene
  - 15° to 400°- 26° to 205°Fluorocarbon
- 100° to 350°- 73° to 177°Fluorosilicone
  - 15° to 400°- 26° to 205°Hifluor
  - 23° to 300°- 32° to 149°Hydrogenated Nitrile
  - 35° to 225°- 37° to 107°Neoprene
  - 30° to 250°- 34° to 121°Nitrile (General Service)
  - 65° to 225°- 55° to 107°Nitrile (Low Temperature)
  - 15° to 500°- 26° to 260°Perfluoroelastomer (Parofluor)
    - 5° to 350°- 21° to 177°Polyacrylate
  - 40° to 180°- 40° to  82°Polyurethane
  - 65° to 450°- 54° to 232°Silicone

Source:  Parker Hannifin

Remember:  Always test under actual service conditions!

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