Types of Nitrile

What are the most popular types of Nitrile?

TYPES OF NITRILE:

NITRILE

Abbreviation: NBR (Nitrile Butadiene Rubber)

Temperature range: between -40°C and +135°C (intermittent/compound-specific up to +150°C); Low-Temp between -65°C and +120°C

Hardness Range: 20 – 95 Shore A

Industries served: Agriculture, Water, Pump & Gas, Food & Drink, Rail, Automotive, and Bus, Truck & Trailer

Key uses: Aircraft, Automotive, and Marine fuel systems, Oil resistance application of all types, low-temperature military uses

Best chemical resistance to: Animal & Vegetable Oils, Fuels, Hydraulic Fluids, Solvents and Water

Best physical and working properties: Abrasion Resistance, Compression Set, Tear Resistance, and Water Resistance

HYDROGENATED NITRILE

Abbreviation: HNBR (Hydrogenated Nitrile Butadiene Rubber) or HSN (Highly Saturated Nitrile)

Temperature range: between -30°C and +170°C (Intermittent/Compound-specific up to +190°C)

Hardness range: 30 – 95 Shore A

Industries served: Petrochemical, Offshore Drilling, Earth Moving & Construction, Agriculture, and Automotive

Key uses: All oil resistant applications, Automotive fuel handling systems, Can be used with Petroleum Oils

Best chemical resistance to: Alcohols, Fuels, LP Gasses & Fuel Oils, Minera, and Motor Oils

Best physical and working properties: Oxidation Resistance, Ozone Resistance, Tear Resistance, Abrasion Resistance, and Compression Set

CARBOXYLATED NITRILE

Abbreviation: XNBR (Carboxylated Nitrile Butadiene Rubber)

Temperature range: between -55°C and +135°C (approx)

Hardness range: 50 – 90 Shore A

Industries served: Water & Gas, Agriculture, Automotive, and Bus, Truck & Trailer

Key uses: Dynamic applications, such as rod wipers, Rubber belts, Reciprocating oil seals

Best chemical resistance to: Oils, Petroleum Based Fluids, Hydraulic Fluids, Animal & Vegetable Oils

Best physical and working properties: Impact Resistance, Abrasion Resistance, and Tear Resistance

For more detailed comparison, please see our Nitrile Comparison Chart.

The above information had been derived from numerous sources and the ratings are therefore intended as a guide only. Users must test under their own operating conditions to determine suitability of any compound in a particular application and temperature.

M Barnwell Services is the UK’s largest independent stockist, manufacture, and distributor of fluid sealing products and services. For more information about Barnwell O Rings click here.
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E & OE. M Barnwell Services endeavours to make sure all the content is correct. Information has been gained from manufacturing partners.