| Material | Abbreviation | Chemical Name | Other Trade Names | ASTM 2000 Designations |
| Hydrogenated Nitrile | HNBR | Hydrogenated Acrylonitrile-butadiene | HNBR | DH |
Hydrogenated Nitrile (HNBR, HSN)
Hydrogenated nitrile is a synthetic polymer that results from the hydrogenation of nitrile rubber (NBR). Superior mechanical characteristics, particularly high strength, helps reduce extrusion and wear.
Heat resistance
• Up to 150°C (300°F)
Cold flexibility
• Down to approximately -48°C (-55°F)
Chemical resistance
• Aliphatic hydrocarbons
• Vegetable and animal fats and oils
• HFA, HFB and HFC hydraulic fluids
• Dilute acids, bases and salt solutions at moderate temperatures
• Water and steam up to 149°C (300°F)
• Ozone, aging and weathering
Not compatible with:
• Chlorinated hydrocarbons
• Polar solvents (ketones, esters and ethers)
• Strong acids
