O-Ring Materials - HNBR, HSN
Hydrogenated nitrile rubber is a synthetic polymer that saturates the hydrocarbon chains of nitrile rubber through a hydrogenation reaction. It reduces many unsaturated double bonds on the main chain of NBR polymer, so it is also called highly saturated nitrile rubber.
Material properties:
● Better heat resistance, ozone resistance, chemical resistance and mechanical properties than NBR.
Applicable industries:
● Automobile industry and oil refining industry, such as seals, pipe fittings, oil seals, and packers.
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| Rubber type (ASTM Abbreviation ) | Hydrogenate Nitrile Rubber HNBR, HSN | ||
| Chemical structure | Partial double-stranded by hydrogenation in the gelatin. | ||
| Main feature | Wear, corrosion, tensile, tear, oxygen and compression deformation properties, suitable for laundry, dishwashing detergents. | ||
| Pure rubber properties | proportion Muni viscosity ML1+ (100℃) | 0.95 ∼ 1.08 50 ∼ 130 | |
| Physical properties of synthetic rubber | Possible JIS hardness range General temperature range(℃) Special temperature range(℃) Tensile strength (kg/cm2) Elongation (%) Anti-elastic Cracking Wear resistance Bending resistance | 60 ∼ 90 -25 ∼ 120 -40 ∼ 140 50 ∼ 400 100 ∼ 800 ○ ● ● ○ | |
| Various properties of synthetic rubber | lubricating oil | Engine oil Gear Oil Motor oil Shaft lubricant Refrigeration oil Butter Lithium oil Oyster sauce | ● ● ● ● ● ● ● ● |
| Working oil | Pot shaft oil Oil + Water emulsion system Water + Glycol Phosphate ester Si Brake Fluid Gear oil | ● ● ○ X ● △ ○ | |
| Fuel oil | Light oil、kerosene Heavy oil Gasoline | △ ○ △ | |
| Water | Water、Warm water Water vapor、Hot water Antifreeze water Water cutting oil | ○ △ ○ ○ | |
| Drug | Hydrochloric acid 20% | ● ○ △ ● X X ● ● X ● X ~ △ X X | |
| Gas | LPG Urban gas Ozone Freon 12 Freon 22 | ○ ○ ○ ○ △ | |
| Other | Food Sanitation Law | ● | |
| The main purpose | It is used for sealing air conditioners and automobile engines in environmentally friendly cold coal R1340A system. | ||