Spruce-pine-fir vs. PPO

Spruce-pine-fir belongs to the wood-based materials classification, while PPO 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 PPO.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		0.5
Density, g/cm³		1.1 to 1.4

Dielectric Strength (Breakdown Potential), kV/mm		0.5
Dielectric Strength (Breakdown Potential), kV/mm		19 to 21

Elongation at Break, %		1.5
Elongation at Break, %		3.5 to 28

Limiting Oxygen Index (LOI), %		24
Limiting Oxygen Index (LOI), %		32

Maximum Temperature: Mechanical, °C		130
Maximum Temperature: Mechanical, °C		100 to 110

Specific Heat Capacity, J/kg-K		1380
Specific Heat Capacity, J/kg-K		1020 to 1250

Strength to Weight: Axial, points		47
Strength to Weight: Axial, points		16 to 27

Strength to Weight: Bending, points		86
Strength to Weight: Bending, points		33 to 42

Tensile Strength: Ultimate (UTS), MPa		85
Tensile Strength: Ultimate (UTS), MPa		63 to 140

Thermal Expansion, µm/m-K		6.5
Thermal Expansion, µm/m-K		25 to 60

Spruce-pine-fir vs. PPO

Material Properties

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