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Z21721 Zinc vs. 444.0 Aluminum

Z21721 zinc belongs to the zinc alloys classification, while 444.0 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 444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
71
Elongation at Break, % 40
25
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
27
Tensile Strength: Ultimate (UTS), MPa 150
190
Tensile Strength: Yield (Proof), MPa 120
83

Thermal Properties

Latent Heat of Fusion, J/g 110
500
Maximum Temperature: Mechanical, °C 90
170
Melting Completion (Liquidus), °C 410
610
Melting Onset (Solidus), °C 390
600
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 110
160
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
40
Electrical Conductivity: Equal Weight (Specific), % IACS 37
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 6.6
2.6
Embodied Carbon, kg CO2/kg material 2.8
7.9
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 340
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
39
Resilience: Unit (Modulus of Resilience), kJ/m3 88
49
Stiffness to Weight: Axial, points 7.3
15
Stiffness to Weight: Bending, points 22
53
Strength to Weight: Axial, points 6.4
20
Strength to Weight: Bending, points 9.6
28
Thermal Diffusivity, mm2/s 44
67
Thermal Shock Resistance, points 4.8
8.8

Alloy Composition


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Aluminum (Al), % 0 to 0.0020
90.5 to 93.5
Cadmium (Cd), % 0 to 0.070
0
Copper (Cu), % 0 to 0.0050
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.6
Lead (Pb), % 0 to 1.0
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.35
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 0 to 0.020
0 to 0.25
Zinc (Zn), % 98.9 to 100
0 to 0.35
Residuals, % 0
0 to 0.15