FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 460x8.6 Kalrez-FFKM - 75 Shore A - Black - SES-578435 O-ring Black461 mm  x 8.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 95.25x3.18 Kalrez-FFKM - 75 Shore A - Black - SES-728925 O-ring Black95.26 mm  x 3.18 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 21x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-561331 O-ring Black21 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 340x5 Kalrez-FFKM - 75 Shore A - Black - SES-565605 O-ring Black340 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 106.5x3 Kalrez-FFKM - 75 Shore A - Black - SES-576252 O-ring Black106.6 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 16.5x1.6 Kalrez-FFKM - 75 Shore A - Black - SES-726799 O-ring Black16.5 mm  x 1.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 305x6.35 Kalrez-FFKM - 75 Shore A - Black - SES-730927 O-ring Black306 mm  x 6.35 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 12.4x1 Kalrez-FFKM - 75 Shore A - Black - SES-560834 O-ring Black12.4 mm  x 1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 261x6 Kalrez-FFKM - 75 Shore A - Black - SES-565125 O-ring Black261 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 73.8x4.5 Kalrez-FFKM - 75 Shore A - Black - SES-575790 O-ring Black73.9 mm  x 4.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 8.9x2.3 Kalrez-FFKM - 75 Shore A - Black - SES-726337 O-ring Black8.9 mm  x 2.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 241x6.4 Kalrez-FFKM - 75 Shore A - Black - SES-730467 O-ring Black242 mm  x 6.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 33.5x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-561813 O-ring Black33.6 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black459 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 146.56x6.86 Kalrez-FFKM - 75 Shore A - Black - SES-576713 O-ring Black146.57 mm  x 6.86 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 26.1x1.4 Kalrez-FFKM - 75 Shore A - Black - SES-727261 O-ring Black26.2 mm  x 1.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 372.5x2 Kalrez-FFKM - 75 Shore A - Black - SES-731392 O-ring Black372.6 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 44.4x3.1 Kalrez-FFKM - 75 Shore A - Black - SES-562201 O-ring Black44.5 mm  x 3.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 2.8x1.1 Kalrez-FFKM - 75 Shore A - Black - SES-572953 O-ring Black2.8 mm  x 1.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 193.5x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-577097 O-ring Black193.6 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 35.3x4.13 Kalrez-FFKM - 75 Shore A - Black - SES-727580 O-ring Black35.4 mm  x 4.13 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black429.6 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 75x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-563008 O-ring Black75 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black12.43 mm  x 1.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 333x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-577897 O-ring Black334 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 65.8x1.68 Kalrez-FFKM - 75 Shore A - Black - SES-728392 O-ring Black65.9 mm  x 1.68 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 61x3 Kalrez-FFKM - 75 Shore A - Black - SES-562695 O-ring Black61 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 8.5x2.8 Kalrez-FFKM - 75 Shore A - Black - SES-573392 O-ring Black8.5 mm  x 2.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 9.9x2.6 Kalrez-FFKM - 75 Shore A - Black - SES-560687 O-ring Black9.10 mm  x 2.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 241x7 Kalrez-FFKM - 75 Shore A - Black - SES-564985 O-ring Black242 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 66x2.2 Kalrez-FFKM - 75 Shore A - Black - SES-575660 O-ring Black66 mm  x 2.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 7.3x2.3 Kalrez-FFKM - 75 Shore A - Black - SES-726214 O-ring Black7.3 mm  x 2.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 223x8 Kalrez-FFKM - 75 Shore A - Black - SES-730347 O-ring Black223 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 43.5x3 Kalrez-FFKM - 75 Shore A - Black - SES-562154 O-ring Black43.6 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 2.3x1.7 Kalrez-FFKM - 75 Shore A - Black - SES-572911 O-ring Black2.3 mm  x 1.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 189.3x5.5 Kalrez-FFKM - 75 Shore A - Black - SES-577059 O-ring Black189.4 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black36.25 mm  x 1.14 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 424x9.52 Kalrez-FFKM - 75 Shore A - Black - SES-731746 O-ring Black424 mm  x 9.52 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black55.7 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 6.8x1.4 Kalrez-FFKM - 75 Shore A - Black - SES-573253 O-ring Black6.8 mm  x 1.4 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.