FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 247x5 Kalrez-FFKM - 75 Shore A - Black - SES-577457 O-ring Black247 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 48x1.7 Kalrez-FFKM - 75 Shore A - Black - SES-727957 O-ring Black48 mm  x 1.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 482x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-732143 O-ring Black483 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black194.57 mm  x 12.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 73.03x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-562976 O-ring Black73.04 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 12x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-573679 O-ring Black12 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 326x8 Kalrez-FFKM - 75 Shore A - Black - SES-577874 O-ring Black326 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 65x1.6 Kalrez-FFKM - 75 Shore A - Black - SES-728372 O-ring Black65 mm  x 1.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 58x2 Kalrez-FFKM - 75 Shore A - Black - SES-562610 O-ring Black58 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 257.8x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-577518 O-ring Black257.9 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 50.4x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-728018 O-ring Black50.5 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 491x6 Kalrez-FFKM - 75 Shore A - Black - SES-732207 O-ring Black492 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 71x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-562918 O-ring Black71 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 11.4x2.1 Kalrez-FFKM - 75 Shore A - Black - SES-573622 O-ring Black11.4 mm  x 2.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 315x8.5 Kalrez-FFKM - 75 Shore A - Black - SES-577818 O-ring Black315 mm  x 8.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black11.1 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 254x4 Kalrez-FFKM - 75 Shore A - Black - SES-565073 O-ring Black254 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 70.5x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-575751 O-ring Black70.6 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 8.43x0.79 Kalrez-FFKM - 75 Shore A - Black - SES-726310 O-ring Black8.44 mm  x 0.79 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black239 mm  x 6.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 12x1 Kalrez-FFKM - 75 Shore A - Black - SES-560809 O-ring Black12 mm  x 1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 259.7x7 Kalrez-FFKM - 75 Shore A - Black - SES-565113 O-ring Black259.8 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 14x2 Kalrez-FFKM - 75 Shore A - Black - SES-560935 O-ring Black14 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 279.5x8.4 Kalrez-FFKM - 75 Shore A - Black - SES-565236 O-ring Black279.6 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 81.7x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-575910 O-ring Black81.8 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 11x1.55 Kalrez-FFKM - 75 Shore A - Black - SES-726472 O-ring Black11 mm  x 1.55 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black261.12 mm  x 5.46 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 110.7x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-563632 O-ring Black110.8 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 23.5x2.55 Kalrez-FFKM - 75 Shore A - Black - SES-574333 O-ring Black23.6 mm  x 2.55 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 491.5x4 Kalrez-FFKM - 75 Shore A - Black - SES-578533 O-ring Black491.6 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 102x8 Kalrez-FFKM - 75 Shore A - Black - SES-729037 O-ring Black102 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 98.05x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-563457 O-ring Black98.06 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 20.5x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-574161 O-ring Black20.5 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 437x4 Kalrez-FFKM - 75 Shore A - Black - SES-578363 O-ring Black438 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 92.5x3.2 Kalrez-FFKM - 75 Shore A - Black - SES-728869 O-ring Black92.6 mm  x 3.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 38x1 Kalrez-FFKM - 75 Shore A - Black - SES-561979 O-ring Black38 mm  x 1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 532.26x7 Kalrez-FFKM - 75 Shore A - Black - SES-566258 O-ring Black532.27 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 168.3x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-576904 O-ring Black168.4 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 31.9x3 Kalrez-FFKM - 75 Shore A - Black - SES-727468 O-ring Black31.10 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 405.3x9.5 Kalrez-FFKM - 75 Shore A - Black - SES-731611 O-ring Black405.4 mm  x 9.5 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.