FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 20.6x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-561322 O-ring Black20.7 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 33x1.3 Kalrez-FFKM - 75 Shore A - Black - SES-561788 O-ring Black33 mm  x 1.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black40 mm  x 3.55 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black52.10 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 113.67x5.54 Kalrez-FFKM - 75 Shore A - Black - SES-576354 O-ring Black113.68 mm  x 5.54 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 154.4x5.36 Kalrez-FFKM - 75 Shore A - Black - SES-576784 O-ring Black154.5 mm  x 5.36 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 205x5.3 Kalrez-FFKM - 75 Shore A - Black - SES-577167 O-ring Black205 mm  x 5.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 275x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-577628 O-ring Black276 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 327x4 Kalrez-FFKM - 75 Shore A - Black - SES-577879 O-ring Black328 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 410.72x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-578244 O-ring Black410.73 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 485x8.4 Kalrez-FFKM - 75 Shore A - Black - SES-578516 O-ring Black486 mm  x 8.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 594x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-578928 O-ring Black595 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 271x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-686857 O-ring Black271 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 4.9x1.95 Kalrez-FFKM - 75 Shore A - Black - SES-726014 O-ring Black4.9 mm  x 1.95 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 13x3.6 Kalrez-FFKM - 75 Shore A - Black - SES-726604 O-ring Black13 mm  x 3.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black13.4 mm  x 1.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 196x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-564634 O-ring Black196 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black20.7 mm  x 1.9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black248.7 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 28.2x1 Kalrez-FFKM - 75 Shore A - Black - SES-574601 O-ring Black28.3 mm  x 1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 310x7 Kalrez-FFKM - 75 Shore A - Black - SES-565434 O-ring Black310 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 38x7.1 Kalrez-FFKM - 75 Shore A - Black - SES-575016 O-ring Black38 mm  x 7.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 419x4 Kalrez-FFKM - 75 Shore A - Black - SES-565938 O-ring Black419 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 53.8x3.1 Kalrez-FFKM - 75 Shore A - Black - SES-575414 O-ring Black53.9 mm  x 3.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 583x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-566291 O-ring Black584 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 68.5x6.2 Kalrez-FFKM - 75 Shore A - Black - SES-575710 O-ring Black68.6 mm  x 6.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.75x1.9 Kalrez-FFKM - 75 Shore A - Black - SES-573171 O-ring Black5.75 mm  x 1.9 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 98x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-576121 O-ring Black98 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 11.6x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-573644 O-ring Black11.7 mm  x 1.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 139.2x5 Kalrez-FFKM - 75 Shore A - Black - SES-576641 O-ring Black139.3 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 18.27x2.6 Kalrez-FFKM - 75 Shore A - Black - SES-574039 O-ring Black18.28 mm  x 2.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 187x5 Kalrez-FFKM - 75 Shore A - Black - SES-577039 O-ring Black187 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 49.21x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-562362 O-ring Black49.22 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 62.6x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-562726 O-ring Black62.7 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 74.5x3 Kalrez-FFKM - 75 Shore A - Black - SES-562998 O-ring Black74.6 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 88.27x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-563265 O-ring Black88.28 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 97.5x3.55 Kalrez-FFKM - 75 Shore A - Black - SES-563436 O-ring Black97.6 mm  x 3.55 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 113x2.03 Kalrez-FFKM - 75 Shore A - Black - SES-563657 O-ring Black113 mm  x 2.03 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 124x3 Kalrez-FFKM - 75 Shore A - Black - SES-563831 O-ring Black124 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 144.7x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-564124 O-ring Black144.8 mm  x 3.5 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.