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SBR Rubber vs. PEEK

SBR rubber belongs to the thermoset elastomers (rubber) classification, while PEEK belongs to the thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is SBR rubber and the bottom bar is PEEK.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 530
1.6 to 43
Tensile Strength: Ultimate (UTS), MPa 14
97 to 200

Thermal Properties

Glass Transition Temperature, °C -30
240
Maximum Temperature: Mechanical, °C 100
330
Specific Heat Capacity, J/kg-K 1880
1390 to 1700
Thermal Conductivity, W/m-K 0.17
0.25 to 0.93

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.3 to 1.5
Limiting Oxygen Index (LOI), % 18
38

Common Calculations

Strength to Weight: Axial, points 3.4
20 to 41
Strength to Weight: Bending, points 11
36 to 55
Thermal Diffusivity, mm2/s 0.082
0.1 to 0.51