FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 48x6.5 Kalrez-FFKM - 75 Shore A - Black - SES-575283 O-ring Black48 mm  x 6.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 9.5x4.2 Kalrez-FFKM - 75 Shore A - Black - SES-726380 O-ring Black9.5 mm  x 4.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 321x3.4 Kalrez-FFKM - 75 Shore A - Black - SES-731033 O-ring Black322 mm  x 3.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 97.54x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-563438 O-ring Black97.55 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 29.8x4.5 Kalrez-FFKM - 75 Shore A - Black - SES-574685 O-ring Black29.9 mm  x 4.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 2.2x0.5 Kalrez-FFKM - 75 Shore A - Black - SES-725779 O-ring Black2.2 mm  x 0.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 239.1x6.9 Kalrez-FFKM - 75 Shore A - Black - SES-730454 O-ring Black239.2 mm  x 6.9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black122.9 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 39x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-575047 O-ring Black39 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 6.55x3.7 Kalrez-FFKM - 75 Shore A - Black - SES-726163 O-ring Black6.55 mm  x 3.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 292x2.65 Kalrez-FFKM - 75 Shore A - Black - SES-730821 O-ring Black292 mm  x 2.65 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 375x6 Kalrez-FFKM - 75 Shore A - Black - SES-578098 O-ring Black376 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 113x5.8 Kalrez-FFKM - 75 Shore A - Black - SES-729189 O-ring Black113 mm  x 5.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 360x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-731308 O-ring Black361 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black7 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 307.57x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-565411 O-ring Black307.58 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black14.5 mm  x 1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 388x8 Kalrez-FFKM - 75 Shore A - Black - SES-565829 O-ring Black389 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 183.5x7 Kalrez-FFKM - 75 Shore A - Black - SES-577013 O-ring Black183.6 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 55x13.5 Kalrez-FFKM - 75 Shore A - Black - SES-728123 O-ring Black55 mm  x 13.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 16.81x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-561091 O-ring Black16.82 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black420.6 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 200x6.5 Kalrez-FFKM - 75 Shore A - Black - SES-577137 O-ring Black200 mm  x 6.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 59.99x4.01 Kalrez-FFKM - 75 Shore A - Black - SES-728244 O-ring Black59.100 mm  x 4.01 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15.88x3.96 Kalrez-FFKM - 75 Shore A - Black - SES-561042 O-ring Black15.88 mm  x 3.96 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 409x6 Kalrez-FFKM - 75 Shore A - Black - SES-565911 O-ring Black409 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 193x6 Kalrez-FFKM - 75 Shore A - Black - SES-577093 O-ring Black193 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 58.6x7 Kalrez-FFKM - 75 Shore A - Black - SES-728205 O-ring Black58.7 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 31.34x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-561731 O-ring Black31.35 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 258x3 Kalrez-FFKM - 75 Shore A - Black - SES-565093 O-ring Black259 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 111x3 Kalrez-FFKM - 75 Shore A - Black - SES-576311 O-ring Black111 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 30x9 Kalrez-FFKM - 75 Shore A - Black - SES-727410 O-ring Black30 mm  x 9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 473x6 Kalrez-FFKM - 75 Shore A - Black - SES-732082 O-ring Black473 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 47x5 Kalrez-FFKM - 75 Shore A - Black - SES-562284 O-ring Black47 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black11.3 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 417x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-578277 O-ring Black417 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 125x8.5 Kalrez-FFKM - 75 Shore A - Black - SES-729391 O-ring Black125 mm  x 8.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black108 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black34 mm  x 1.9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 4.2x0.5 Kalrez-FFKM - 75 Shore A - Black - SES-725956 O-ring Black4.2 mm  x 0.5 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.