Advanced HNBR (Hydrogenated Nitrile Butadiene Rubber) O-rings engineered for superior high-temperature oil resistance. The next-generation upgrade from NBR, offering enhanced performance in demanding automotive, oil field, and industrial applications requiring extended temperature capability up to 165°C.
HNBR Properties & Specifications
📊 Physical Properties
Material Type
Hydrogenated Nitrile (HNBR)
Continuous Temperature
-40°C to 165°C (-40°F to 329°F)
Short-term Temperature
Up to 180°C (356°F)
Hardness Range
70-95 Shore A
Tensile Strength
15-30 MPa (2175-4350 psi)
Elongation at Break
200-450%
🎨 Available Options
Standard Colors:
Hardness Options:
Certifications:
Temperature Performance
Temperature Capabilities
Temperature Range
Fahrenheit
Celsius
Duration
Performance Notes
Continuous Operating
-40°F to +302°F
-40°C to +150°C
Unlimited
Optimal performance range
Short-term Exposure
Up to +338°F
Up to +170°C
Up to 48 hours
Emergency/startup conditions
Brittle Point
N/A
Becomes rigid, may crack
Chemical Compatibility
✅ Excellent Resistance
High Temperature Oils and Fuels
Hydraulic Fluids (high pressure)
Engine Oils and Lubricants
Sour Gas and H2S Environments
Ozone and Weather (better than NBR)
Amine-based Additives
⚠️ Poor/No Resistance
Ketones and Strong Solvents
Polar Solvents (alcohols)
Strong Acids and Bases
Steam above 150°C
Phosphate Ester Fluids
Chemical Resistance Chart (Common Fluids)
Chemical/Fluid
Concentration
Temperature
Rating
Notes
Rating Scale: Excellent = No effect, Good = Slight effect acceptable, Fair = Moderate effect, Poor = Severe effect, not recommended