FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 350x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-577984 O-ring Black351 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black91 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 44.17x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-562194 O-ring Black44.18 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 7.5x1.6 Kalrez-FFKM - 75 Shore A - Black - SES-573304 O-ring Black7.5 mm  x 1.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 300x12 Kalrez-FFKM - 75 Shore A - Black - SES-577766 O-ring Black300 mm  x 12 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 80x2.2 Kalrez-FFKM - 75 Shore A - Black - SES-728652 O-ring Black80 mm  x 2.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 18x6.75 Kalrez-FFKM - 75 Shore A - Black - SES-726884 O-ring Black18 mm  x 6.75 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 371x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-731382 O-ring Black372 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 142.5x4 Kalrez-FFKM - 75 Shore A - Black - SES-564099 O-ring Black142.6 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 42x5.5 Kalrez-FFKM - 75 Shore A - Black - SES-575133 O-ring Black42 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 4.8x3 Kalrez-FFKM - 75 Shore A - Black - SES-726010 O-ring Black4.8 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 240x9 Kalrez-FFKM - 75 Shore A - Black - SES-730460 O-ring Black240 mm  x 9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.41x1.02 Kalrez-FFKM - 75 Shore A - Black - SES-560438 O-ring Black5.42 mm  x 1.02 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black259.3 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 97.77x6.1 Kalrez-FFKM - 75 Shore A - Black - SES-576118 O-ring Black97.78 mm  x 6.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 20x6.5 Kalrez-FFKM - 75 Shore A - Black - SES-726993 O-ring Black20 mm  x 6.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 377x8 Kalrez-FFKM - 75 Shore A - Black - SES-731424 O-ring Black378 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 518x8 Kalrez-FFKM - 75 Shore A - Black - SES-578639 O-ring Black518 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 136x12 Kalrez-FFKM - 75 Shore A - Black - SES-729518 O-ring Black136 mm  x 12 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5x3 Kalrez-FFKM - 75 Shore A - Black - SES-560417 O-ring Black5 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 247.24x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-565015 O-ring Black247.25 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 96x8 Kalrez-FFKM - 75 Shore A - Black - SES-576102 O-ring Black96 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 377x5 Kalrez-FFKM - 75 Shore A - Black - SES-578107 O-ring Black378 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 99x4.5 Kalrez-FFKM - 75 Shore A - Black - SES-728982 O-ring Black99 mm  x 4.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 27.4x3 Kalrez-FFKM - 75 Shore A - Black - SES-561596 O-ring Black27.5 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 501x6 Kalrez-FFKM - 75 Shore A - Black - SES-566218 O-ring Black502 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 3x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-560315 O-ring Black3 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 243x5 Kalrez-FFKM - 75 Shore A - Black - SES-564988 O-ring Black243 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 335x5 Kalrez-FFKM - 75 Shore A - Black - SES-577903 O-ring Black335 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 87.12x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-728787 O-ring Black87.13 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 456.06x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-566070 O-ring Black456.07 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 188.21x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-577052 O-ring Black188.22 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 47.3x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-727944 O-ring Black47.4 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 139.07x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-564040 O-ring Black139.08 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 4.3x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-725963 O-ring Black4.3 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 234x6.5 Kalrez-FFKM - 75 Shore A - Black - SES-730420 O-ring Black234 mm  x 6.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 39.5x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-562028 O-ring Black39.6 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black5.5 mm  x 1.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 277x3.3 Kalrez-FFKM - 75 Shore A - Black - SES-577634 O-ring Black278 mm  x 3.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 74x14 Kalrez-FFKM - 75 Shore A - Black - SES-728525 O-ring Black74 mm  x 14 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.