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Zamak 2 vs. Spruce-pine-fir

Zamak 2 and spruce-pine-fir belong to fundamentally different material chemistries. Zamak 2 is a metal, while spruce-pine-fir is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 16 material properties with values for both materials. Properties with values for just one material (21, 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 Zamak 2 and the bottom bar is spruce-pine-fir.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 640
50
Elastic (Young's, Tensile) Modulus, GPa 87
16
Elongation at Break, % 6.0
1.5
Poisson's Ratio 0.26
0.38
Shear Modulus, GPa 33
1.2
Tensile Strength: Ultimate (UTS), MPa 360
85

Thermal Properties

Maximum Temperature: Mechanical, °C 95
130
Specific Heat Capacity, J/kg-K 410
1380
Thermal Conductivity, W/m-K 110
0.12
Thermal Expansion, µm/m-K 28
6.5

Otherwise Unclassified Properties

Density, g/cm3 6.5
0.5

Common Calculations

Stiffness to Weight: Axial, points 7.5
18
Strength to Weight: Axial, points 15
47
Strength to Weight: Bending, points 17
86
Thermal Diffusivity, mm2/s 41
0.17
Thermal Shock Resistance, points 11
58