Data sheets › FKM › EX40
Material for O-rings
FKM EX40
Fluoroelastomer · FKM
Extreme
Technical data
Material class
FKM
Hardness
70
±5 Shore A
Operating temperature
−40/+225
°C
Density
2.10
g/cm³
Properties
| Property | Test method | Value | Unit |
|---|---|---|---|
| Hardness | ASTM D2240 | 70 ±5 | Shore A |
| Elongation at break | ASTM D412 | 200 | % |
| Tensile strength | ASTM D412 | 13.78 | MPa |
| Compression set | ASTM D395 B1 (22 h / 200 °C) | 10 | % |
| TR-10 | ASTM D1329 | −30 | °C |
| Density | ASTM D1817 | 2.10 ±0.03 | g/cm³ |
Shelf life10 years
Polymer contenton request
Media resistance
Resistant to
- Mineral oils and greases
- Fuels, including aromatic-containing
- Aliphatic, aromatic and chlorinated hydrocarbons
- Many acids
- Ozone, weathering and UV
- High temperatures
Not recommended for
- Ketones
- Esters and ethers
- Amines
- Hot water and steam
- Glykolbasierte Bremsflüssigkeiten
- Hot alkalis
Check resistance against your medium
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Typical applications
High-temperature technology
continuous up to +225 °C
Low-temperature technology
bis −40 °C
Oil & gas
aggressive media, high temperature
Automobil & Motorsport
Engine and exhaust area
Chemical & process engineering
Pumps, valves, media contact
Plant & mechanical engineering
demanding temperatures
Conformity
All NH materials are REACH- and RoHS-compliant and ADI-free.
REACH-compliantRoHS-compliantADI-free
High-performance O-rings. It doesn't get any simpler.
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