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Hydrogenated Acrylonitrile Rubber (HNBR)

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Abbreviation FVMQ
Common Name HNBR
ASTM D-2000 classification  
Military(Mil-Std417)  
Chemical Definition Hydrogenated AcrylonitrileButadiene

General Characteristics  
Durometer-Range (Shore A) 50-90
Tensile Range (P.S.I) 2600
Elongation (Max.%) 530
Compression Set Excellent
Resilience-Rebound Excellent
Abrasion Resistance Excellent
Tear Resistance Excellent
Solvent Resistance Good
Oil Resistance Excellent
Low Temperature Usage (°F) -65° to 250°
High Temperature Usage (°F) to 350°
Aging Weather-Sunlight Excellent
Adhesion To Metals Good

Feature

Advantage:

  1. Exhibit better wear resistance than standard nitrile.
  2. Excellent abrasion, compression set, tensiles, and tear properties.
  3. Good resistance to ozone, sunlight, and other atmospheric conditions.
  4. Vastly improved resistance to heat aging up to 300¢XF range and, for short periods, in the 350¢XF range available material exhibits a low temperature range -40°F.

Disadvantage:

  1. Not recommended for exposure to ketone, esters, and aromatic fluids.