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Z21721 Zinc vs. 5026 Aluminum

Z21721 zinc belongs to the zinc alloys classification, while 5026 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 Z21721 zinc and the bottom bar is 5026 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
70
Elongation at Break, % 40
5.1 to 11
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
26
Tensile Strength: Ultimate (UTS), MPa 150
260 to 320
Tensile Strength: Yield (Proof), MPa 120
120 to 250

Thermal Properties

Latent Heat of Fusion, J/g 110
400
Maximum Temperature: Mechanical, °C 90
210
Melting Completion (Liquidus), °C 410
650
Melting Onset (Solidus), °C 390
510
Specific Heat Capacity, J/kg-K 390
890
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
31
Electrical Conductivity: Equal Weight (Specific), % IACS 37
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 6.6
2.8
Embodied Carbon, kg CO2/kg material 2.8
8.9
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 340
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
15 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 88
100 to 440
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 22
49
Strength to Weight: Axial, points 6.4
26 to 32
Strength to Weight: Bending, points 9.6
33 to 37
Thermal Diffusivity, mm2/s 44
52
Thermal Shock Resistance, points 4.8
11 to 14

Alloy Composition


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Aluminum (Al), % 0 to 0.0020
88.2 to 94.7
Cadmium (Cd), % 0 to 0.070
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.0050
0.1 to 0.8
Iron (Fe), % 0 to 0.010
0.2 to 1.0
Lead (Pb), % 0 to 1.0
0
Magnesium (Mg), % 0
3.9 to 4.9
Manganese (Mn), % 0
0.6 to 1.8
Silicon (Si), % 0
0.55 to 1.4
Titanium (Ti), % 0 to 0.020
0 to 0.2
Zinc (Zn), % 98.9 to 100
0 to 1.0
Zirconium (Zr), % 0
0 to 0.3
Residuals, % 0
0 to 0.15