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Hydrogenated Nitrile Rubber (HNBR / HSN)

  • Hydrogenated Nitrile Rubber
    (HNBR / HSN)

    Hydrogenated Nitrile Butadiene Rubber (HNBR), also referred to as Highly Saturated Nitrile (HSN) is a modified class of Nitrile rubber where the polymer chain has been saturated with hydrogen atoms (hydrogenated) to provide the material with superior mechanical and physical properties in comparison to standard Nitrile (NBR).

    HNBR resistance

    HNBR materials offer superior heat and chemical resistance against standard NBR grades. Like NBR, the variations in the Acrylonitrile (ACN) content determine the material's resistance to oils and solvents, while the degree of hydrogen saturation influences the heat resistance of the compound. A lower ACN content will provide improved low temperature flexibility, but will affect the compound's chemical resistance.

    HNBR materials bridge the gap between Nitrile (NBR) and Fluorocarbon (FKM / FPM / Viton™) rubbers in areas where the resistance to aggressive fluids / media and temperature resistance are required simultaneously. HNBR is generally a lower cost alternative to fluorocarbon rubber materials.

    We have a number of high performance HNBR materials available to suit a wide range of applications.

    Data sheet
    Temperature
    Hardness
    Description
    HNBR-B85
    Standard Grade Peroxide Cured HNBR    		 Min: -25°C
    Max: +150°C

    83 Shore A

    A peroxide cured Hydrogenated-Acrylonitrile-Butadiene-Rubber (HNBR / HSN) which has excellent abrasion resistance, good compression set resistance and offers a wide temperature range.
    HNBR-B90
    Hard Grade Hydrogenated Nitrile 90a    		 Min: -20°C
    Max: +150°C

    90 Shore A

    Our hard grade HNBR / H-NBR / HSN which has excellent abrasion and extrusion resistance, and also offers a wide temperature range.
    HNBR-B95
    Extreme Hard Grade Hydrogenated Nitrile 95a HNBR    		 Min: -20°C
    Max: +150°C

    95 Shore A

    Our extreme hard grade HNBR / H-NBR / HSN, which has  excellent abrasion and extrusion resistance, which makes it a good choice for high pressure applications.
    HNBR-B75
    75a Shore Nitrile Rubber    		 Min: -20°C
    Max: +150°C

    75 Shore A

    A soft HNBR / H-NBR / HSN, which provides good temperature resistance, excellent elasticity and compression-set characteristics.
    HNBR-FQ-G82
    Green FDA Compliant HNBR    		 Min: -30°C
    Max: +150°C

    82 Shore A

    		 An FDA compliant HNBR material, with improved chemical resistance over standard nitrile compounds.
    HNBR-EDB85
    Explosive Decompression ED Resistant HNBR    		 Min: -15°C
    Max: +150°C

    85 Shore A

    A peroxide cured HNBR / H-NBR / HSN which has been optimised and tested against Norsok M-710 requirements for resistance to Explosive Decompression (ED).
    HNBR-LT-RGDB85
    Low Temp RGD Resistant Peroxide Cured HNBR    		 Min: -40°C
    Max: +150°C

    83 Shore A

    		 Optimised for resistance to the risk of Rapid Gas Decompression (RGD) and to allow its use in low temperature applications.
    Approvals: RGD (Rapid Gas Decompression) resistance
    HNBR-G85
    Green Commercial Grade HNBR    		 Min: -25°C
    Max: +150°C    		 85 Shore A

    A green coloured commercial grade HNBR / H-NBR / HSN, which has excellent abrasion, tear resistance and chemical resistance.
    HNBR-RGDB90
    Norsok M-710 & API6A Compliant Peroxide Cured HNBR    		 Min: -20°C
    Max: +150°C

    83 Shore A

    		 Approvals: ISO 23936-2 / Norsok M-710 Annex A & B compliant & ISO 10423:2009 F.1.13.5.2 API 6A FF/HH tested & RGD (Rapid Gas Decompression) resistance

    Technical Help

    Please contact our technical team if you require further information or cannot find the material compound you require.

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