HNBR O-ring 70 Shore A

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HNBR (Hydrogenated Nitrile Butadiene Rubber) is obtained by fully or partially hydrogenating the double bonds in nitrile butadiene rubber with hydrogen into single bonds. Compared to NBR, HNBR has better properties in terms of oil resistance, temperature resistance and strength. It is more resistant to ozone and aggressive substances and can be used from -40 ° C to 165 ° C (with peaks up to 190 ° C). HNBR was developed in the 1970s by, among others, Shell [3] and Bayer (now Lanxess) [4]; Bayer / Lanxess' brand name is Therban. Another brand name was Tornac from Polysar, which was subsequently bought up by Bayer.
HNBR has been developed to meet higher temperatures than the standard NBR, while it is resistant to oil-based oils. Obtained by hydrogenating the nitrile copolymer, HNBR fills the space left between NBR, EPDM and FKM elastomers where high temperature conditions require high tensile strength, while excellent resistance to engine oils, acid gas, amine / oil blends, oxidized fuels and Hydronated nitrile rubber (Hydrogenated nitrile rubber HNBR)
Patented by Bayer in 1975 and the first to be marketed in 1986 under the name Therban.

HNBR is a saturated NBR version with a much higher temperature resistance. With ACN levels of 18-49% and a saturation degree of 80-99%. Temperature resistance possibilities from -45 degrees to +165 degrees and peaks up to `80 degrees.

You could say that HNBR fills the gap between NBR and FKM. HNBR is still resistant to aggressive media at higher temperatures.
lubricating oils remain.
Hydrogenated Nitrile Butadiene Rubber (HNBR) has been developed to bridge the price-performance gap between FKM / FVMQ and NBR. Compared with NBR, HNBR has better oil resistance, temperature properties and strength.

 

HNBR benefits:
• Resistant to mineral oil based hydraulic fluids
• Resistant to animal and vegetable fats
• Resistant to diesel fuel, ozone, acid gas, diluted acids and bases
• Resistant to new organic oils (organic oils)
• Suitable for high dynamic loads and has good wear resistance
• Suitable for temperatures from -30 degrees C to +150 degrees C
• Mechanically strong
• Good compression set / good "hot tear" / good ozone and aging resistance
• Resistant to high energy radioactive radiation
• Good resistance to hot water and steam
• Temperature resistance to prolonged +150 degrees C with higher peaks
• Good resistance to various media
• Excellent heat and oxidation resistance
• Can be used in water and steam
• Temperature range from -30 degrees to +160 degrees C
• Excellent resistance to automotive fluids (engine oil, coolant, fuel etc.)

Cons HNBR:
• Considerably more expensive
• Not resistant to chlorinated hydrocarbons
• Not resistant to polar solvents (ketones, eaters and esters)
• Not resistant to strong acids

On this page we offer our range of 70 Shore A O-Rings. Search for your specific O ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our 70 Shore A made from HNBR, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 1.42x1.52 HNBR - 70 Shore A - Black - ses-466183 O-ring Black1.42 x 1.52HNBR70 Shore ANee60 icon
O-Ring 4.34x3.53 HNBR - 70 Shore A - Black - ses-466191 O-ring Black4.34 x 3.53HNBR70 Shore ANee51 icon
O-Ring 6.07x1.78 HNBR - 70 Shore A - Black - ses-466200 O-ring Black6.07 x 1.78HNBR70 Shore ANee54 icon
O-Ring 15.54x2.62 HNBR - 70 Shore A - Green - ses-467379 O-ring Green15.54 x 2.62HNBR70 Shore ANee59 icon
O-Ring 16.81x5.33 HNBR - 70 Shore A - Green - ses-467381 O-ring Green16.81 x 5.33HNBR70 Shore ANee51 icon
O-Ring 8.92x1.83 HNBR - 70 Shore A - Green - ses-467363 O-ring Green8.92 x 1.83HNBR70 Shore ANee51 icon
O-Ring 9.25x1.78 HNBR - 70 Shore A - Green - ses-500509 O-ring Green9.25 x 1.78HNBR70 Shore ANee56 icon
O-Ring 10.8x2.4 HNBR - 70 Shore A - Green - ses-540659 O-ring Green10.8 x 2.4HNBR70 Shore ANee60 icon
O-Ring 2.57x1.78 HNBR - 70 Shore A - Black - ses-466186 O-ring Black2.57 x 1.78HNBR70 Shore ANee57 icon
O-Ring 4.7x1.42 HNBR - 70 Shore A - Black - ses-466194 O-ring Black4.7 x 1.42HNBR70 Shore ANee56 icon
O-Ring 20x2.65 HNBR - 70 Shore A - Black - ses-288730 O-ring Black20 x 2.65HNBR70 Shore ANee54 icon
O-Ring 7.6x2.62 HNBR - 70 Shore A - Green - ses-467361 O-ring Green7.6 x 2.62HNBR70 Shore ANee54 icon
O-Ring 22x2 HNBR - 70 Shore A - Black - ses-519095 O-ring Black22 x 2HNBR70 Shore ANee57 icon
O-Ring 23.47x2.62 HNBR - 70 Shore A - Black - ses-466247 O-ring Black23.47 x 2.62HNBR70 Shore ANee57 icon
O-Ring 360x12.7 HNBR - 60 Shore A - Black - ses-540715 O-ring Black360 x 12.7HNBR60 Shore ANee59 icon
O-Ring 432.2x13.46 HNBR - 70 Shore A - Black - ses-318801 O-ring Black432.2 x 13.46HNBR70 Shore ANee51 icon
O-Ring 456.06x5.33 HNBR - 70 Shore A - Green - ses-467695 O-ring Green456.06 x 5.33HNBR70 Shore ANee57 icon
O-Ring 506.86x6.99 HNBR - 70 Shore A - Green - ses-467702 O-ring Green506.86 x 6.99HNBR70 Shore ANee53 icon
O-Ring 938.5x19.05 HNBR - 70 Shore A - Black - ses-318807 O-ring Black938.5 x 19.05HNBR70 Shore ANee55 icon
O-Ring 17.16x1.78 HNBR - 70 Shore A - Green - ses-500513 O-ring Green17.16 x 1.78HNBR70 Shore ANee60 icon
O-Ring 31.47x1.78 HNBR - 70 Shore A - Green - ses-467420 O-ring Green31.47 x 1.78HNBR70 Shore ANee54 icon
O-Ring 88.27x5.33 HNBR - 70 Shore A - Black - ses-466364 O-ring Black88.27 x 5.33HNBR70 Shore ANee59 icon
O-Ring 43.69x3 HNBR - 70 Shore A - Black - ses-466295 O-ring Black43.69 x 3HNBR70 Shore ANee55 icon
O-Ring 47.37x1.78 HNBR - 70 Shore A - Black - ses-466306 O-ring Black47.37 x 1.78HNBR70 Shore ANee60 icon
O-Ring 221.84x3.53 HNBR - 70 Shore A - Green - ses-467640 O-ring Green221.84 x 3.53HNBR70 Shore ANee51 icon
O-Ring 69.22x5.33 HNBR - 70 Shore A - Black - ses-466344 O-ring Black69.22 x 5.33HNBR70 Shore ANee53 icon
O-Ring 190.1x3.53 HNBR - 70 Shore A - Green - ses-467622 O-ring Green190.1 x 3.53HNBR70 Shore ANee55 icon
O-Ring 316.87x6.99 HNBR - 70 Shore A - Black - ses-466509 O-ring Black316.87 x 6.99HNBR70 Shore ANee58 icon
O-Ring 329.8x3.53 HNBR - 70 Shore A - Green - ses-467676 O-ring Green329.8 x 3.53HNBR70 Shore ANee57 icon
O-Ring 304.39x3.53 HNBR - 70 Shore A - Black - ses-466508 O-ring Black304.39 x 3.53HNBR70 Shore ANee59 icon
O-Ring 416.7x6.99 HNBR - 70 Shore A - Black - ses-318788 O-ring Black416.7 x 6.99HNBR70 Shore ANee58 icon
O-Ring 380.37x5.33 HNBR - 70 Shore A - Black - ses-466517 O-ring Black380.37 x 5.33HNBR70 Shore ANee54 icon
O-Ring 468.76x6.99 HNBR - 70 Shore A - Black - ses-466532 O-ring Black468.76 x 6.99HNBR70 Shore ANee54 icon
O-Ring 658.88x6.99 HNBR - 70 Shore A - Black - ses-466549 O-ring Black658.88 x 6.99HNBR70 Shore ANee60 icon
O-Ring 7.52x3.53 HNBR - 70 Shore A - Green - ses-467360 O-ring Green7.52 x 3.53HNBR70 Shore ANee53 icon
O-Ring 26.58x3.53 HNBR - 70 Shore A - Green - ses-467405 O-ring Green26.58 x 3.53HNBR70 Shore ANee51 icon
O-Ring 34.52x3.53 HNBR - 70 Shore A - Green - ses-467428 O-ring Green34.52 x 3.53HNBR70 Shore ANee51 icon
O-Ring 1.78x1.78 HNBR - 70 Shore A - Black - ses-466184 O-ring Black1.78 x 1.78HNBR70 Shore ANee57 icon
O-Ring 148.6x6.99 HNBR - 70 Shore A - Black - ses-466432 O-ring Black148.6 x 6.99HNBR70 Shore ANee53 icon
O-Ring 4.48x1.78 HNBR - 70 Shore A - Black - ses-466193 O-ring Black4.48 x 1.78HNBR70 Shore ANee54 icon