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ECO Rubber vs. Spruce-pine-fir

ECO rubber belongs to the thermoset elastomers (rubber) classification, while spruce-pine-fir belongs to the wood-based materials. There are 12 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ECO rubber and the bottom bar is spruce-pine-fir.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 21
50
Elastic (Young's, Tensile) Modulus, GPa 0.0075
16
Elongation at Break, % 440
1.5
Poisson's Ratio 0.49
0.38
Shear Modulus, GPa 2.5
1.2
Tensile Strength: Ultimate (UTS), MPa 16
85

Thermal Properties

Maximum Temperature: Mechanical, °C 130
130
Thermal Expansion, µm/m-K 650
6.5

Otherwise Unclassified Properties

Density, g/cm3 1.5
0.5

Common Calculations

Stiffness to Weight: Axial, points 0.0029
18
Strength to Weight: Axial, points 3.0
47
Strength to Weight: Bending, points 9.5
86