FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 18x8 Kalrez-FFKM - 75 Shore A - Black - SES-726886 O-ring Black18 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 38x3.3 Kalrez-FFKM - 75 Shore A - Black - SES-727664 O-ring Black38 mm  x 3.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 171.4x3.2 Kalrez-FFKM - 75 Shore A - Black - SES-729911 O-ring Black171.5 mm  x 3.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black253.60 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 330x8.4 Kalrez-FFKM - 75 Shore A - Black - SES-731105 O-ring Black330 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 469.5x6.4 Kalrez-FFKM - 75 Shore A - Black - SES-732050 O-ring Black469.6 mm  x 6.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 8.53x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-560611 O-ring Black8.54 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 17.61x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-561154 O-ring Black17.62 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 31.6x2.6 Kalrez-FFKM - 75 Shore A - Black - SES-561744 O-ring Black31.7 mm  x 2.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 43.99x3.99 Kalrez-FFKM - 75 Shore A - Black - SES-562174 O-ring Black43.100 mm  x 3.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 60.04x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-562678 O-ring Black60.05 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 75.79x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-563029 O-ring Black75.80 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 94.93x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-563397 O-ring Black94.94 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 185x5 Kalrez-FFKM - 75 Shore A - Black - SES-564547 O-ring Black185 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 13.5x2 Kalrez-FFKM - 75 Shore A - Black - SES-560902 O-ring Black13.5 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 28.24x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-561630 O-ring Black28.25 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 39.6x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-562030 O-ring Black39.7 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 54.79x3.04 Kalrez-FFKM - 75 Shore A - Black - SES-562526 O-ring Black54.80 mm  x 3.04 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.31x1.27 Kalrez-FFKM - 75 Shore A - Black - SES-560437 O-ring Black5.31 mm  x 1.27 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black15.5 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 31.42x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-561733 O-ring Black31.43 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 45.69x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-562242 O-ring Black45.70 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 64x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-562763 O-ring Black64 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 84x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-563183 O-ring Black84 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 101x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-563500 O-ring Black101 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 123.5x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-563824 O-ring Black123.6 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 162.5x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-564336 O-ring Black162.6 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 270x7 Kalrez-FFKM - 75 Shore A - Black - SES-565176 O-ring Black270 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 444.3x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-566034 O-ring Black444.4 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 9.2x2 Kalrez-FFKM - 75 Shore A - Black - SES-573459 O-ring Black9.2 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black26 mm  x 3.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 59.5x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-575541 O-ring Black59.6 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 147x3 Kalrez-FFKM - 75 Shore A - Black - SES-576714 O-ring Black147 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 255x7 Kalrez-FFKM - 75 Shore A - Black - SES-577504 O-ring Black256 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 423x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-578301 O-ring Black424 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 765x7 Kalrez-FFKM - 75 Shore A - Black - SES-579140 O-ring Black766 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 10.3x2.05 Kalrez-FFKM - 75 Shore A - Black - SES-726442 O-ring Black10.3 mm  x 2.05 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 23.1x3 Kalrez-FFKM - 75 Shore A - Black - SES-727135 O-ring Black23.2 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 430.66x6.99 Kalrez-FFKM - 75 Shore A - Black - SES-565990 O-ring Black430.67 mm  x 6.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 8.9x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-573423 O-ring Black8.9 mm  x 1.8 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.