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Zamak 3 vs. Alpha Quartz

Zamak 3 and alpha quartz belong to fundamentally different material chemistries. Zamak 3 is a metal, while alpha quartz is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (26, 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 3 and the bottom bar is alpha quartz.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
91
Knoop Hardness 110
740
Poisson's Ratio 0.25
0.13
Shear Modulus, GPa 33
31

Thermal Properties

Melting Onset (Solidus), °C 380
1590
Specific Heat Capacity, J/kg-K 410
720
Thermal Conductivity, W/m-K 110
8.5
Thermal Expansion, µm/m-K 27
9.5

Otherwise Unclassified Properties

Density, g/cm3 6.4
2.7

Common Calculations

Stiffness to Weight: Axial, points 7.5
19
Stiffness to Weight: Bending, points 23
57
Thermal Diffusivity, mm2/s 43
4.4