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2018 Aluminum vs. Z40301 Zinc

2018 aluminum belongs to the aluminum alloys classification, while Z40301 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 2018 aluminum and the bottom bar is Z40301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
87
Elongation at Break, % 9.6
60
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 27
35
Tensile Strength: Ultimate (UTS), MPa 420
190
Tensile Strength: Yield (Proof), MPa 310
150

Thermal Properties

Latent Heat of Fusion, J/g 390
110
Maximum Temperature: Mechanical, °C 220
90
Melting Completion (Liquidus), °C 640
410
Melting Onset (Solidus), °C 510
400
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 22
26

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.1
6.6
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1130
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
100
Resilience: Unit (Modulus of Resilience), kJ/m3 670
130
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 38
7.9
Strength to Weight: Bending, points 41
11
Thermal Diffusivity, mm2/s 57
44
Thermal Shock Resistance, points 19
5.9

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
0.5 to 1.0
Iron (Fe), % 0 to 1.0
0 to 0.010
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 1.7 to 2.3
0
Silicon (Si), % 0 to 0.9
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.25
98.9 to 99.5
Residuals, % 0 to 0.15
0