FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 486x8 Kalrez-FFKM - 75 Shore A - Black - SES-732172 O-ring Black486 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 165x5 Kalrez-FFKM - 75 Shore A - Black - SES-564373 O-ring Black165 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black48 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-726027 O-ring Black5 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 225x5.5 Kalrez-FFKM - 75 Shore A - Black - SES-730359 O-ring Black225 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 91.67x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-563338 O-ring Black91.68 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 209.23x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-564747 O-ring Black209.24 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 28.7x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-574627 O-ring Black28.8 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 644.6x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-579023 O-ring Black644.7 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 152.2x5.5 Kalrez-FFKM - 75 Shore A - Black - SES-729711 O-ring Black152.3 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 42.8x5 Kalrez-FFKM - 75 Shore A - Black - SES-562136 O-ring Black42.9 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 9.5x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-560670 O-ring Black9.5 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black276 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 95.5x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-576089 O-ring Black95.6 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 17.25x1.02 Kalrez-FFKM - 75 Shore A - Black - SES-726841 O-ring Black17.25 mm  x 1.02 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 338x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-731166 O-ring Black339 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 14.4x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-560958 O-ring Black14.4 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black317 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 113.41x6.35 Kalrez-FFKM - 75 Shore A - Black - SES-576350 O-ring Black113.42 mm  x 6.35 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 22.5x5 Kalrez-FFKM - 75 Shore A - Black - SES-727099 O-ring Black22.5 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 377x10 Kalrez-FFKM - 75 Shore A - Black - SES-731425 O-ring Black378 mm  x 10 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 136x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-564012 O-ring Black136 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 35.7x2 Kalrez-FFKM - 75 Shore A - Black - SES-574919 O-ring Black35.8 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 0.8x0.45 Kalrez-FFKM - 75 Shore A - Black - SES-725672 O-ring Black0.8 mm  x 0.45 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 180x8.5 Kalrez-FFKM - 75 Shore A - Black - SES-730006 O-ring Black181 mm  x 8.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black63 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black11.89 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 368x3 Kalrez-FFKM - 75 Shore A - Black - SES-578066 O-ring Black368 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 86x4.1 Kalrez-FFKM - 75 Shore A - Black - SES-728760 O-ring Black86 mm  x 4.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.3x1.27 Kalrez-FFKM - 75 Shore A - Black - SES-560432 O-ring Black5.3 mm  x 1.27 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 240.67x6.92 Kalrez-FFKM - 75 Shore A - Black - SES-564974 O-ring Black240.68 mm  x 6.92 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 6.35x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-560490 O-ring Black6.35 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 249.9x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-565033 O-ring Black249.10 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 42x1 Kalrez-FFKM - 75 Shore A - Black - SES-562108 O-ring Black42 mm  x 1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15.1x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-560998 O-ring Black15.2 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 324x7 Kalrez-FFKM - 75 Shore A - Black - SES-565525 O-ring Black324 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 116.3x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-576391 O-ring Black116.4 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black23.6 mm  x 2.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 384x14.1 Kalrez-FFKM - 75 Shore A - Black - SES-731476 O-ring Black385 mm  x 14.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black81 mm  x 5 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.