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Spruce-pine-fir vs. PTFE

Spruce-pine-fir belongs to the wood-based materials classification, while PTFE belongs to the thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (16, 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 spruce-pine-fir and the bottom bar is PTFE.

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 50
6.9 to 24
Density, g/cm3 0.5
2.1 to 2.3
Elongation at Break, % 1.5
75 to 300
Limiting Oxygen Index (LOI), % 24
90
Maximum Temperature: Mechanical, °C 130
260 to 270
Strength to Weight: Axial, points 47
1.7 to 3.2
Strength to Weight: Bending, points 86
5.7 to 8.7
Tensile Strength: Ultimate (UTS), MPa 85
13 to 25
Thermal Conductivity, W/m-K 0.12
0.24 to 0.65
Thermal Expansion, µm/m-K 6.5
110 to 120