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FFKM vs. HNBR Rubber

Both FFKM and HNBR rubber are thermoset elastomers (rubber).

For each property being compared, the top bar is FFKM and the bottom bar is HNBR rubber.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.0
1.3
Elongation at Break, % 170
300
Maximum Temperature: Mechanical, °C 280
190
Strength to Weight: Axial, points 2.3
4.1
Strength to Weight: Bending, points 7.2
12
Tensile Strength: Ultimate (UTS), MPa 16
19