HNBR

Hydrogenated nitrile butadiene rubber（HNBR）

It is produced by hydrogenating the unsaturated double bonds contained in the main chain of NBR, also known as highly saturated NBR. Since HNBR has a reasonable molecular structure, it not only inherits the properties of NBR such as oil resistance and abrasion resistance, but also has more excellent heat resistance, oxidation resistance, ozone resistance, and chemical resistance, which can be comparable to fluorine rubber, and it can replace fluorine rubber, CR, NBR, and other special rubbers in many aspects.

1. parameters:

Hardness:60-95（shore A°）
Temperature range: -40°C~150°C （-40°F~302°F）
Tensile rate: 100%-400%
Strength: 10-13Mpa

2. properties:

Oil Resistance: HNBR retains the basic properties of NBR with excellent resistance to oils, fuels, and other hydrocarbon-based fluids. It retains its physical properties and maintains a reliable seal even when exposed to these substances.
Chemical Resistance: HNBR has excellent resistance to a wide range of chemicals, including oils, fuels, hydraulic fluids, solvents, and many industrial chemicals. It is known for its resistance to sour gases (hydrogen sulfide) encountered in oil and gas applications.
Ozone and Weathering Resistance: HNBR exhibits excellent ozone and weathering resistance, making it suitable for outdoor and exposed applications. It can withstand the damaging effects of sunlight, ultraviolet (UV) radiation, and harsh weather conditions without significant degradation.
Resistance to compression set: HNBR has a low compression set, which means it retains its shape and elasticity even after being compressed or deformed for long periods of time.
Abrasion resistance: HNBR has good abrasion resistance and is suitable for applications where there is contact with rough surfaces or friction. It can withstand repeated mechanical stresses and maintain its integrity over time.
Heat Resistance: HNBR exhibits excellent heat resistance due to the hydrogenation process and can withstand high temperatures without significant degradation or loss of mechanical properties. It can typically operate in the temperature range of -40°C (-40°F) to 150°C (302°F) or higher.

3. Application：

Automotive industry: HNBR rubber products are mainly used in oil-resistant rubber parts for automobiles, of which the most produced are conveyor belts, followed by seals, cables, hoses, gaskets, and so on.
Oil and gas industry: As oil and gas wells are drilled deeper and deeper, the temperature is higher and the working environment is harsher. In this environment, mainly H2S, CO2, methane, diesel, and other media will affect the rubber. And HNBR rubber products have excellent resistance to the above chemicals, even better than the effect of fluorine rubber products. Therefore, it is especially suitable for the production of rubber parts such as blowout preventers, plugs, valve seals, rotary hoses, power cable sheaths, etc. for oil or gas wells.
Nuclear power plant: HNBR’s radiation resistance is better than silicone rubber, fluoroelastomer, and PTFE, and it is also suitable for all kinds of rubber seals for nuclear power plants.

HNBR

Hydrogenated nitrile butadiene rubber（HNBR）

1. parameters:

2. properties:

3. Application：

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