FFKM O-rings EN993

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 399.5x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-802115 O-ring Black399.6 mm  x 8.4 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 10.5x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-787155 O-ring Black10.5 mm  x 1.3 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 39.5x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-791245 O-ring Black39.6 mm  x 1.6 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 107x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-795398 O-ring Black107 mm  x 1.78 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 249x8 Kalrez-FFKM - 90 Shore A - Black - SES-799493 O-ring Black249 mm  x 8 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 517x8 Kalrez-FFKM - 90 Shore A - Black - SES-803621 O-ring Black518 mm  x 8 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 8.38x3.38 Kalrez-FFKM - 90 Shore A - Black - SES-786720 O-ring Black8.38 mm  x 3.38 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 36x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-790869 O-ring Black36 mm  x 3.2 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 111.99x4.85 Kalrez-FFKM - 90 Shore A - Black - SES-795613 O-ring Black111.100 mm  x 4.85 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 263x5 Kalrez-FFKM - 90 Shore A - Black - SES-799774 O-ring Black264 mm  x 5 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 561.5x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-803837 O-ring Black561.6 mm  x 8.5 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 125x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-796189 O-ring Black125 mm  x 2.65 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 290x5.34 Kalrez-FFKM - 90 Shore A - Black - SES-800284 O-ring Black291 mm  x 5.34 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 19.2x2 Kalrez-FFKM - 90 Shore A - Black - SES-788708 O-ring Black19.3 mm  x 2 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 58x7 Kalrez-FFKM - 90 Shore A - Black - SES-792774 O-ring Black58 mm  x 7 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 13.55x2.55 Kalrez-FFKM - 90 Shore A - Black - SES-787749 O-ring Black13.56 mm  x 2.55 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 145x5 Kalrez-FFKM - 90 Shore A - Black - SES-796926 O-ring Black145 mm  x 5 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 46x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-791816 O-ring Black46 mm  x 1.9 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 120x1 Kalrez-FFKM - 90 Shore A - Black - SES-795970 O-ring Black120 mm  x 1 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 278.7x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-800066 O-ring Black278.8 mm  x 5.33 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 710x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-804197 O-ring Black711 mm  x 5.33 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 330x4 Kalrez-FFKM - 90 Shore A - Black - SES-801020 O-ring Black330 mm  x 4 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 5.6x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-786114 O-ring Black5.6 mm  x 2.5 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 30.4x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-790266 O-ring Black30.5 mm  x 3.1 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 85x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-794363 O-ring Black85 mm  x 2.5 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 203.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-798525 O-ring Black203.9 mm  x 3.1 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black431 mm  x 8 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 18.29x4.75 Kalrez-FFKM - 90 Shore A - Black - SES-788564 O-ring Black18.30 mm  x 4.75 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 45x1.53 Kalrez-FFKM - 90 Shore A - Black - SES-791744 O-ring Black45 mm  x 1.53 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 118x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-795902 O-ring Black118 mm  x 1.8 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 275x3 Kalrez-FFKM - 90 Shore A - Black - SES-800001 O-ring Black276 mm  x 3 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 660x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-804135 O-ring Black660 mm  x 5.3 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 21.1x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-789001 O-ring Black21.2 mm  x 1.6 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 62x6.9 Kalrez-FFKM - 90 Shore A - Black - SES-793070 O-ring Black62 mm  x 6.9 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 154.5x10 Kalrez-FFKM - 90 Shore A - Black - SES-797232 O-ring Black154.6 mm  x 10 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 349x5 Kalrez-FFKM - 90 Shore A - Black - SES-801330 O-ring Black349 mm  x 5 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 5.5x1.75 Kalrez-FFKM - 90 Shore A - Black - SES-786089 O-ring Black5.5 mm  x 1.75 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 30x11 Kalrez-FFKM - 90 Shore A - Black - SES-790244 O-ring Black30 mm  x 11 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 56x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-792619 O-ring Black56 mm  x 5.3 mm FFKM - FFPM90 Shore A Neeicon-bekijk icon
O-Ring 140.97x4.32 Kalrez-FFKM - 90 Shore A - Black - SES-796776 O-ring Black140.98 mm  x 4.32 mm FFKM - FFPM90 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 N993 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 N993 certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.