design guide

Highly Saturated Nitrile (HNBR)

HNBR has been developed to withstand continuous temperatures of up to 302°F (150°C) while retaining resistance to petroleum oils. Obtained by hydrogenerating the nitrile copolymer, HNBR fills the gap left by NBR and FKM elastomers when high temperature conditions require high tensile strength while maintaining excellent resistance to motor oil, ATF, sour gas, amine/oil mixtures, oxidized fuels and lubricating oils.

Compound 574GY

  • Saturated nitrile compound
  • High temperature operations to 300°F (150°C)
  • Excellent oil and fuel resistance
    Tensile Elongation Oil Aging
Volume Swell (Change %)
70hr at 100°C/212°F
Compound Hardness
Shore A
MPa psi (%) ASTM #1 IRM 903
574GY 70 15.2 2200 250 +1 +18