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4045 Aluminum vs. Commercially Pure Zinc

4045 aluminum belongs to the aluminum alloys classification, while commercially pure 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 4045 aluminum and the bottom bar is commercially pure zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
87
Elongation at Break, % 2.3
38
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 27
35
Tensile Strength: Ultimate (UTS), MPa 120
97
Tensile Strength: Yield (Proof), MPa 64
79

Thermal Properties

Latent Heat of Fusion, J/g 540
110
Maximum Temperature: Mechanical, °C 160
90
Melting Completion (Liquidus), °C 600
410
Melting Onset (Solidus), °C 580
400
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
27
Electrical Conductivity: Equal Weight (Specific), % IACS 160
37

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.6
6.6
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1070
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
34
Resilience: Unit (Modulus of Resilience), kJ/m3 29
36
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 54
23
Strength to Weight: Axial, points 13
4.1
Strength to Weight: Bending, points 21
7.1
Thermal Diffusivity, mm2/s 74
44
Thermal Shock Resistance, points 5.7
3.0

Alloy Composition

Aluminum (Al), % 87.4 to 91
0 to 0.010
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 0 to 0.3
0 to 0.080
Iron (Fe), % 0 to 0.8
0 to 0.020
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0
Silicon (Si), % 9.0 to 11
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.2
0 to 0.020
Zinc (Zn), % 0 to 0.1
99.827 to 100
Residuals, % 0 to 0.15
0