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Balsa vs. LDPE

Balsa belongs to the wood-based materials classification, while LDPE belongs to the thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (11, 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 balsa and the bottom bar is LDPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.0
0.3
Shear Modulus, GPa 0.23
0.21
Tensile Strength: Ultimate (UTS), MPa 14
7.0

Thermal Properties

Specific Heat Capacity, J/kg-K 1700
2300
Thermal Conductivity, W/m-K 0.1
0.36
Thermal Expansion, µm/m-K 6.5
220

Otherwise Unclassified Properties

Density, g/cm3 0.13
0.92

Common Calculations

Stiffness to Weight: Axial, points 13
0.18
Strength to Weight: Axial, points 30
2.1
Strength to Weight: Bending, points 99
8.8
Thermal Diffusivity, mm2/s 0.45
0.17
Thermal Shock Resistance, points 51
7.6