Description:
Hydrogenated nitrile butadiene rubber (HNBR) o-ring is a kind of sealing rings made of hydrogenated nitrile rubber material, which has a wide range of applications and excellent performance characteristics.
Hydrogenated nitrile butadiene rubber (HNBR) is a kind of highly saturated elastomer obtained by special hydrogenation treatment of nitrile butadiene rubber.Hydrogenated nitrile rubber has good oil resistance (good resistance to fuel oil, lubricating oil and aromatic solvents); And because of its highly saturated structure, It has good heat resistance (-60 to 180 degrees), excellent chemical corrosion resistance (good resistance to freon, acid, alkali), excellent ozone resistance, high compression deformation resistance; At the same time, Hydrogenated nitrile rubber also has high strength, high tearing performance, excellent wear resistance and other characteristics, is one rubber material that with the most excellent comprehensive properties. It is widely used in automobile manufacturing, electrical and electronic, medical and health, aerospace and other fields. As a kind of high performance rubber material, it has a broad application prospect in various fields.
Features:
Hydrogenated nitrile butadiene rubber (HNBR) is a high-performance rubber with a variety of outstanding properties that make it outstanding in a wide range of applications. The main properties of hydrogenated nitrile butadiene rubber include:
1) Oil resistance: hydrogenated nitrile rubber has good resistance to fuel oil, lubricating oil and aromatic solvents, and can be used in these media for a long time without swelling or hardening.
2) Heat resistance : Due to its highly saturated structure, hydrogenated nitrile butadiene rubber has excellent heat resistance and can maintain stable performance under high temperature environment, such as in 150℃ oil can be used for a long time.
3) Chemical corrosion resistance : It has good resistance to freon, acid, alkali and other chemicals, but it should be noted that the corrosion resistance to high temperature acid or high concentration acid is poor.
4) Ozone resistance : It has excellent ozone resistance, can maintain good performance in the ozone environment.
5) Compression deformation resistance : It has high compression deformation resistance, even under high pressure environment can maintain stable shape and performance.
6) Physical and mechanical properties : hydrogenated nitrile butadiene rubber has high strength, high tearing properties and wear resistance, is one of the most excellent comprehensive properties of rubber.
7) Low temperature resistance: Although hydrogenated nitrile rubber has high low temperature resistance and can withstand temperatures as low as -50°C to -60°C, it is still necessary to pay attention to changes in its physical properties at extreme low temperatures.
8) Aging properties : The aging properties of hydrogenated nitrile butadiene rubber are greatly affected by ultraviolet light and oxidation, and long-term exposure to these environments will lead to the decline of its physical and mechanical properties.
9)Temperature range: hydrogenated nitrile butadiene rubber has a wide temperature range, generally between -40°C and 150°C, which is suitable for a variety of industrial and civil fields.
In summary, hydrogenated nitrile butadiene rubber has become a very important high-performance rubber material because of its excellent oil resistance, heat resistance, chemical resistance, ozone resistance and wear resistance, as well as high strength and high tearing properties !
Size:
AS568, ISO3601, JIS, BS,GB,METRIC,INCH
ID(inner dia): from 1mm to 600mm
C/S(cross section): from 1mm to 50mm
Customized sizes are available
Applications:
Hydrogenated nitrile O-rings are widely used in automotive industry, refrigeration systems, electrical appliances, bearings, cylinders, chemical pipelines, valves and so on. This type of O-ring is widely used in various industrial fields because of its excellent performance, such as oil resistance, corrosion resistance, low temperature resistance, high temperature resistance, ozone resistance, etc.
1) Automotive industry: Hydrogenated nitrile O-rings are widely used in the automotive industry, including engine system seals and other contact fuel seals. It has good oil resistance and wear resistance, can resist mechanical wear, and is suitable for the sealing of automotive air conditioning systems and other components.
2) Refrigeration system: hydrogenated nitrile O-rings are also widely used in refrigeration systems, especially in the use of new refrigerant such as R134a, 440A, 407C and so on, Its low temperature resistance, heat resistance, tear resistance, compression deformation characteristics make it an ideal sealing material.
3) Electrical appliances, bearings, cylinders: hydrogenated nitrile O-rings are also suitable for the sealing of electrical appliances, bearings, cylinders and other parts, its excellent oil resistance and wear resistance can ensure the normal operation and long-term stability of these parts.
4) Chemical pipes and valves: In the chemical industry, hydrogenated nitrile O-rings are used to seal chemical pipes and valves because of their good corrosion resistance and high temperature resistance, ensuring the safety and efficiency of chemical processes.
Technical Data Sheet:
| Criterion Requirement | Standard | Actual | Criterion |
| Before Aging |
|
|
|
| Hardness D shore A | 70±5 | 73 | ASTM D2240 |
| Tensile strength (Mpa) | ≥15 | 15.5 | ASTM D412 |
| Elongation at Break (％) | ≥180 | 235 | ASTM D412 |
| Aging after 150℃X72h |
|
| ASTM D573 |
| Compression set 22h at 150℃(％) | ≤25 | 23 |
|
| Change in Tensile (％) | ≥-15 | 6 |
|
| Change in Elongation (％) | ≥-30 | -12 |
|
| Hardness change D shore A | 0～+10 | 3 |
|
| NO ASTM 1#Oil Resistance test (150℃×70h) |
|
| ASTM D471 |
| Change in Tensile (％) | ≥-20 | 8 |
|
| Change in Elongation (％) | ≥-30 | -15 |
|
| Hardness change D shore A | -5～+10 | 3 |
|
| Change In Volume | -10～+5 | -4 |
|
| NO ASTM 3# Oil Resistance test 150℃×70h) |
|
| ASTM D471 |
| Change in Tensile (％) | ≥-40 | -18 |
|
| Change in Elongation (％) | ≥-30 | -12 |
|
| Hardness change D shore A | -15～+10 | -8 |
|
| Change In Volume | -5～+25 | 18 |
|
The above technical data is only HNBR 70sh for reference, We have many different rubber formulas to
meet different customized technical properties requirements.
