Nitrile Rubber

COMMON NAME: Nitrile, NBR, Buna-N

General Characteristics

  • ASTM D-2000 Classification: BF, BG, BK
  • Military (MIL STD 417): SB
  • Chemical Definition: Butadine Acrylonitrile
  • Durometer Range: 20-95
  • Tensile Range (P.S.I): 200-3000
  • Elongation (Max %): 600
  • Compression Set: Good
  • Resilience-Rebound: Good
  • Abrasion Resistance: Excellent
  • Tear Resistance: Good
  • Solvent Resistance: Good to Excellent
  • Oil Resistance: Good to Excellent
  • Low Temperature Usage (F°): +30° to -40°
  • High Temperature Usage (F°): to 250°
  • Aging Weather-Sunlight: Poor
  • Adhesion to Metals: Good to Excellent

Nitrile Rubber is a general-purpose oil resistance polymer
which has good solvent, oil, water, and hydraulic fluid
resistance, good compression set, abrasion resistance
and tensile strength. Nitrile should not be used in highly
polar solvents such as acetone, and MEK, ozone,
chlorinated hydrocarbons and nitro hydrocarbons.

Good compression set

Good abrasion resistance

Good tensile strength