FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 9.52x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-560678 O-ring Black9.52 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 81.7x7 Kalrez-FFKM - 75 Shore A - Black - SES-563138 O-ring Black81.8 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 17.78x1.91 Kalrez-FFKM - 75 Shore A - Black - SES-574003 O-ring Black17.79 mm  x 1.91 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 433x5 Kalrez-FFKM - 75 Shore A - Black - SES-578347 O-ring Black433 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 100x4.7 Kalrez-FFKM - 75 Shore A - Black - SES-728994 O-ring Black100 mm  x 4.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 83x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-563170 O-ring Black83 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 18.25x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-574037 O-ring Black18.26 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 442x8 Kalrez-FFKM - 75 Shore A - Black - SES-578382 O-ring Black443 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 101.6x9.53 Kalrez-FFKM - 75 Shore A - Black - SES-729030 O-ring Black101.7 mm  x 9.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 32.7x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-561781 O-ring Black32.8 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 481.46x6.99 Kalrez-FFKM - 75 Shore A - Black - SES-566157 O-ring Black481.47 mm  x 6.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 185x3.1 Kalrez-FFKM - 75 Shore A - Black - SES-577024 O-ring Black185 mm  x 3.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 37.97x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-727659 O-ring Black37.98 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 464.1x8.4 Kalrez-FFKM - 75 Shore A - Black - SES-732010 O-ring Black464.2 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 66x2 Kalrez-FFKM - 75 Shore A - Black - SES-562814 O-ring Black66 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 160x3 Kalrez-FFKM - 75 Shore A - Black - SES-564311 O-ring Black161 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 46.5x4 Kalrez-FFKM - 75 Shore A - Black - SES-575231 O-ring Black46.6 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 3x1.1 Kalrez-FFKM - 75 Shore A - Black - SES-725864 O-ring Black3 mm  x 1.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 207x7.4 Kalrez-FFKM - 75 Shore A - Black - SES-730227 O-ring Black208 mm  x 7.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 66.7x2 Kalrez-FFKM - 75 Shore A - Black - SES-562836 O-ring Black66.8 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black31.5 mm  x 2.65 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 491x8 Kalrez-FFKM - 75 Shore A - Black - SES-566188 O-ring Black492 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 180x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-576985 O-ring Black181 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black38.10 mm  x 2.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 460x5.3 Kalrez-FFKM - 75 Shore A - Black - SES-731979 O-ring Black461 mm  x 5.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 36.17x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-561910 O-ring Black36.18 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 582x7 Kalrez-FFKM - 75 Shore A - Black - SES-566286 O-ring Black582 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 203.5x6 Kalrez-FFKM - 75 Shore A - Black - SES-577158 O-ring Black203.6 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 42x5.4 Kalrez-FFKM - 75 Shore A - Black - SES-727809 O-ring Black42 mm  x 5.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 482.6x12.7 Kalrez-FFKM - 75 Shore A - Black - SES-732150 O-ring Black482.7 mm  x 12.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 73x3.55 Kalrez-FFKM - 75 Shore A - Black - SES-562971 O-ring Black73 mm  x 3.55 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 60x2.65 Kalrez-FFKM - 75 Shore A - Black - SES-562665 O-ring Black60 mm  x 2.65 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 10.11x1.85 Kalrez-FFKM - 75 Shore A - Black - SES-573539 O-ring Black10.11 mm  x 1.85 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 332x4 Kalrez-FFKM - 75 Shore A - Black - SES-577894 O-ring Black333 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 75.7x9.45 Kalrez-FFKM - 75 Shore A - Black - SES-728546 O-ring Black75.8 mm  x 9.45 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 21.8x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-561356 O-ring Black21.9 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 370x6 Kalrez-FFKM - 75 Shore A - Black - SES-565750 O-ring Black371 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 138x7 Kalrez-FFKM - 75 Shore A - Black - SES-576632 O-ring Black138 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 26.5x4 Kalrez-FFKM - 75 Shore A - Black - SES-727273 O-ring Black26.6 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 407x7.5 Kalrez-FFKM - 75 Shore A - Black - SES-731631 O-ring Black408 mm  x 7.5 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.