Products Description
HNBR (hydrogenated nitrile butadiene rubber) O-rings are high-performance rubber seals with excellent resistance to oil, heat, and chemicals.
The following is a brief description of the material properties, application fields, and shortcomings of HNBR O-rings.
Material properties
- Oil resistance: It has excellent oil resistance and can be used for a long time in various oil media such as lubricating oil, hydraulic oil, and fuel.
- Heat resistance: Able to maintain good performance in high-temperature environments, usually used in the temperature range of -40°C to 150°C.
- Chemical resistance: Good resistance to most chemicals, including acids, alkalis, solvents, etc.
| HNBR 70 | ||||
| Property | Unit | Test Method | Test Parameter | Value |
| Hardness | IRHD | ASTM D 1415 | 70 ±5 | |
| Tensile strength | MPa | ASTM D 412 | 23 | |
| Ultimate elongation | % | ASTM D 412 | 229 | |
| Specific gravity | g/cm3 | ASTM D 297 | 1.23 | |
| Compression set | % | ASTM D 395 B | 22h / 150°C | 16 |
| Low temp. resistance | °C | ASTM D 1329 | TR10 | -21.9 |
Sealing performance
- High-pressure sealing: Able to withstand high pressure, provide reliable sealing effect, and suitable for high-pressure liquid or gas systems.
- Good sealing: It has good sealing performance and can effectively prevent the leakage of liquid or gas.
Application Areas
- Automotive industry: It is widely used in sealing fields such as automobile engines, transmission systems, and fuel systems. It is favored for its excellent oil resistance.
- Engineering machinery: It can be used in seal applications such as hydraulic systems, braking systems, and lubrication systems of engineering machinery.
- Chemical industry: suitable for chemical equipment, pipeline systems, pump valve seals, and other occasions requiring chemical resistance.
Size and Customization
The size of HNBR O-rings can be customized according to specific application needs to accommodate different sealing requirements.
Common sizes range from a few millimeters to tens of centimeters, which can meet various sealing needs of different sizes.
In short, the HNBR O-ring is a high-performance seal that is oil-resistant, heat-resistant, and chemical-resistant and is widely used in various industries such as the automotive industry, engineering machinery, and chemical industry.
If you are looking for the best sealing solution, please ask us.
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