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Z41321 Zinc vs. 2025 Aluminum

Z41321 zinc belongs to the zinc alloys classification, while 2025 aluminum belongs to the aluminum 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 Z41321 zinc and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
72
Elongation at Break, % 60
15
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
27
Tensile Strength: Ultimate (UTS), MPa 190
400
Tensile Strength: Yield (Proof), MPa 150
260

Thermal Properties

Latent Heat of Fusion, J/g 110
400
Maximum Temperature: Mechanical, °C 90
190
Melting Completion (Liquidus), °C 410
640
Melting Onset (Solidus), °C 400
520
Specific Heat Capacity, J/kg-K 390
870
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
23

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
10
Density, g/cm3 6.6
3.0
Embodied Carbon, kg CO2/kg material 2.8
7.9
Embodied Energy, MJ/kg 54
150
Embodied Water, L/kg 340
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
55
Resilience: Unit (Modulus of Resilience), kJ/m3 130
450
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 23
46
Strength to Weight: Axial, points 7.9
37
Strength to Weight: Bending, points 11
40
Thermal Diffusivity, mm2/s 44
58
Thermal Shock Resistance, points 5.9
18

Alloy Composition


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Aluminum (Al), % 0 to 0.010
90.9 to 95.2
Cadmium (Cd), % 0 to 0.0050
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.5 to 1.0
3.9 to 5.0
Iron (Fe), % 0 to 0.010
0 to 1.0
Lead (Pb), % 0 to 0.010
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0.4 to 1.2
Silicon (Si), % 0
0.5 to 1.2
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0.080 to 0.18
0 to 0.15
Zinc (Zn), % 98.8 to 99.42
0 to 0.25
Residuals, % 0
0 to 0.15