Color - black
H-NBR is an elastomer based on hydrogenated acrylonitrile-butadiene rubber, which can be used in aliphatic hydrocarbon (i.e. propane, butane) and mineral oils and lubricants (short time up to 170°C), also for raw petroleum which contains hydrogen sulfide. H-NBR also can be used in diluted acids and alkali, saline, even at high temperatures and in water-glycol composition. H-NBR is not compatible with fuels, which are high in aromatic hydrocarbons (composition of premium gasoline), petrol ketones (fuel- spirituous compositions), esters, ethers and chlorinated hydrocarbons (i.e. trichloroethylene and tetrachlorethylene).
H-NBR is soot free and is suitable for electrical insulation
In comparison with NBR, H-NBR has better mechanical properties, such as conventional tensile strength, relative elongation at break and abrasion resistance. The temperature range is much wider (from -25°C up to +150°C; short time up to 170°C). This material has a high ozone, weather and ageing resistance. Swelling in mineral oils is low, but depends very much on the composition of the oil. The compatibility with oils, which have a high percentage of additives, is much better than NBR.
|Good resistance||Medium resistance||Low resistance|
|Mineral oils and grease||40% aromat. fuils (leaded fuils)||Aromatic hydrocarbon (toulene, benzol)|
|Aliphatic hydrocarbons (propane, butane, petrol)||Biodegradable hydraulic fluids||Chlorinated hydrocarbones (trichloroethylene; perchlorethylene)|
|Water||Silicone oil and grease (oils can cause the decrease)||Brake fluids based on glycol|
|Fire-resistant pneumatic fluids HFA, HFB, HFC||Fire-resistant hydraulic fluids HFD|
|Adipose and vegetable oils and grease||–||Polar solvents (acetone, ethyl acetate)|
|Diesel petrol||–||Hot steam|
|Oils with big amount of additives||–||–|
|Big amount of acids and bases, salines at room temperature.||–||–|
|Raw petroleum (containing hydrogen sulfide and amines)||–||–|
H-NBR is mainly used in cases, wh ere high fuel and mineral oil resistance, high elasticity at high temperatures in oil with a high percentage of additives, are required. (I.e. FPM substitute).
For example: motor seals and gearbox seals in automotive industry; seal parts for petroleum and natural gas production industry.
H-NBR Material Data Sheet
|Hardness||83||Sh A||DIN 53505|
|Density||1,23||g/cm³||DIN 53479 or DIN EN ISO 1183-1|
|Compression set 23°C / 72 h||23,7||%||DIN 53517 or DIN ISO 815-1|
|Compression set 70°C / 24 h||25,6||%||DIN 53517 or DIN ISO 815-1|
|Compression set 100°C / 24 h||40||%||DIN 53517 or DIN ISO 815-1|
|100 % modulus||9,7||MPa||DIN 53504|
|Rebound resilience||36||%||DIN 53512|
|Tensile strength||23||MPa||DIN 53504|
|Elongation at break||256||%||DIN 53504|
|Tear strength||5,6||N/mm||DIN 53515 or DIN ISO 34-1 A|
|Min. service temperature||-25||°C|
|Max. service temperature||+150||°C|