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Z41321 Zinc vs. 7129 Aluminum

Z41321 zinc belongs to the zinc alloys classification, while 7129 Aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 Z41321 zinc and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
69
Elongation at Break, % 60
9.0 to 9.1
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
26
Tensile Strength: Ultimate (UTS), MPa 190
430
Tensile Strength: Yield (Proof), MPa 150
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 110
380
Maximum Temperature: Mechanical, °C 90
180
Melting Completion (Liquidus), °C 410
630
Melting Onset (Solidus), °C 400
510
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
40
Electrical Conductivity: Equal Weight (Specific), % IACS 37
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 6.6
2.9
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 54
150
Embodied Water, L/kg 340
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1050 to 1090
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 23
47
Strength to Weight: Axial, points 7.9
41
Strength to Weight: Bending, points 11
43 to 44
Thermal Diffusivity, mm2/s 44
58
Thermal Shock Resistance, points 5.9
19

Alloy Composition


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Aluminum (Al), % 0 to 0.010
91 to 94
Cadmium (Cd), % 0 to 0.0050
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.5 to 1.0
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.010
0 to 0.3
Lead (Pb), % 0 to 0.010
0
Magnesium (Mg), % 0
1.3 to 2.0
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0.080 to 0.18
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 98.8 to 99.42
4.2 to 5.2
Residuals, % 0
0 to 0.15