FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 265x4 Kalrez-FFKM - 75 Shore A - Black - SES-565138 O-ring Black266 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 105x2.8 Kalrez-FFKM - 75 Shore A - Black - SES-576222 O-ring Black105 mm  x 2.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 21x8.5 Kalrez-FFKM - 75 Shore A - Black - SES-727033 O-ring Black21 mm  x 8.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 398x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-731550 O-ring Black399 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 21.1x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-561338 O-ring Black21.2 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 430x8 Kalrez-FFKM - 75 Shore A - Black - SES-565984 O-ring Black430 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 177x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-576960 O-ring Black177 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 43.6x3.2 Kalrez-FFKM - 75 Shore A - Black - SES-727864 O-ring Black43.7 mm  x 3.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 40.64x1.14 Kalrez-FFKM - 75 Shore A - Black O-ring Black40.65 mm  x 1.14 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 64x2 Kalrez-FFKM - 75 Shore A - Black - SES-562764 O-ring Black64 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15.2x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-573879 O-ring Black15.2 mm  x 1.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 432x4 Kalrez-FFKM - 75 Shore A - Black - SES-578340 O-ring Black432 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 114.5x2.3 Kalrez-FFKM - 75 Shore A - Black - SES-729230 O-ring Black114.6 mm  x 2.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 70x6 Kalrez-FFKM - 75 Shore A - Black - SES-562912 O-ring Black70 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black18 mm  x 5.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 478x5 Kalrez-FFKM - 75 Shore A - Black - SES-578493 O-ring Black478 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 124x18 Kalrez-FFKM - 75 Shore A - Black - SES-729379 O-ring Black124 mm  x 18 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black12.4 mm  x 2.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 310x8.4 Kalrez-FFKM - 75 Shore A - Black - SES-565436 O-ring Black310 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 127.5x3 Kalrez-FFKM - 75 Shore A - Black - SES-576510 O-ring Black127.6 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 28x5.5 Kalrez-FFKM - 75 Shore A - Black - SES-727331 O-ring Black28 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 442x5 Kalrez-FFKM - 75 Shore A - Black - SES-731855 O-ring Black443 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 190x5.3 Kalrez-FFKM - 75 Shore A - Black - SES-564591 O-ring Black190 mm  x 5.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 68.2x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-575703 O-ring Black68.3 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 750x7.5 Kalrez-FFKM - 75 Shore A - Black - SES-579129 O-ring Black751 mm  x 7.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 181x6.35 Kalrez-FFKM - 75 Shore A - Black - SES-730017 O-ring Black181 mm  x 6.35 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 158.35x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-564286 O-ring Black158.36 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 53.3x1.2 Kalrez-FFKM - 75 Shore A - Black - SES-575403 O-ring Black53.4 mm  x 1.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 7.5x1.17 Kalrez-FFKM - 75 Shore A - Black - SES-726236 O-ring Black7.5 mm  x 1.17 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 281.5x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-730756 O-ring Black281.6 mm  x 1.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 185x3 Kalrez-FFKM - 75 Shore A - Black - SES-564543 O-ring Black185 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 66x2.6 Kalrez-FFKM - 75 Shore A - Black - SES-575661 O-ring Black66 mm  x 2.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 11x8 Kalrez-FFKM - 75 Shore A - Black - SES-726486 O-ring Black11 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 317x9 Kalrez-FFKM - 75 Shore A - Black - SES-731009 O-ring Black317 mm  x 9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 43.92x6.99 Kalrez-FFKM - 75 Shore A - Black - SES-562170 O-ring Black43.93 mm  x 6.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black7.3 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 302.8x8.6 Kalrez-FFKM - 75 Shore A - Black - SES-577775 O-ring Black302.9 mm  x 8.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 81.5x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-728679 O-ring Black81.6 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 196x4 Kalrez-FFKM - 75 Shore A - Black - SES-564635 O-ring Black196 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 70.5x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-575750 O-ring Black70.6 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon

To provide even greater thermal stability and solvent resistance, tetrafluoroethylene (TFE) containing fluoroelastomer terpolymers were introduced in 1959. The latest FKM polymers have a much broader fluids resistance profile than standard fluoroelastomers, and are able to withstand strong bases and ketones as well as aromatic hydrocarbons, oils, acids, and steam. In 1975 a new fluoroelastomer family was introduced by Asahi Glass Co., FEPM, based on an alternating copolymer of TFE and propylene. It is marketed under the trade name AFLAS®.

The chemical resistance and high-temperature stability is due to the bulkiness of the fluorine atoms, shielding the polymer backbone and carbon-fluor bond from attack, and the high bonding energy of the carbon-fluor bond.

FFKM gives the indication for the types of improved properties for different applications.


Material: Fluorocarbon elastomers
Fluorocarbon rubber is an elastomer

Fluorocarbon elastomers are highly fluorinated carbon-based polymers that are used in applications that must withstand aggressive chemical and ozone attacks.

In general, with increasing fluorine content, the resistance to chemical attack is improved, while the low temperature properties decrease. However, there are special quality fluorocarbons that do have a high fluorine content at low temperature properties.

Good qualities:

  • Chemical compatibility
  • Good temperature resistance
  • Low compression setting
  • Resistant to minerals, oils and fats
  • Good gas tightness
  • Excellent resistance to non-polar media
  • Excellent weather and aging stability
  • Very good oxygen and ozone stability
  • Operating temperature range from -26 °C to +205/230 °C (-15 °F to +400/440 °F)
  • When used briefly, the material can tolerate even higher temperatures
  • Special compounds with improved chemical resistance are available
  • Brake fluids based on glycol
  • Low molecular weight organic acids

FFKM
FFKM are perfluoroelastomeric compounds that contain an even greater amount of fluorine than FKMO fluoroelastomers.

FFKM have an improved resistance to high temperatures and chemicals and are even resistant to environments where oxygen plasma is present for many hours. Certain grades have a maximum continuous service temperature of 327 °C / 621 °F. They are often used to make o-rings and gaskets that are used to make o-rings and gaskets that are used in applications where contact with hydrocarbons or highly corrosive liquids the case, or when a wide temperature range is encountered.

On this page we offer our range of N896 certified 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 N896 certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.