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Z21721 Zinc vs. EN AC-45400 Aluminum

Z21721 zinc belongs to the zinc alloys classification, while EN AC-45400 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 EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
72
Elongation at Break, % 40
6.7
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
27
Tensile Strength: Ultimate (UTS), MPa 150
260
Tensile Strength: Yield (Proof), MPa 120
130

Thermal Properties

Latent Heat of Fusion, J/g 110
470
Maximum Temperature: Mechanical, °C 90
170
Melting Completion (Liquidus), °C 410
630
Melting Onset (Solidus), °C 390
560
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
30
Electrical Conductivity: Equal Weight (Specific), % IACS 37
95

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 6.6
2.8
Embodied Carbon, kg CO2/kg material 2.8
7.8
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 340
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
14
Resilience: Unit (Modulus of Resilience), kJ/m3 88
110
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 22
49
Strength to Weight: Axial, points 6.4
25
Strength to Weight: Bending, points 9.6
32
Thermal Diffusivity, mm2/s 44
54
Thermal Shock Resistance, points 4.8
12

Alloy Composition


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Aluminum (Al), % 0 to 0.0020
88.4 to 92.9
Cadmium (Cd), % 0 to 0.070
0
Copper (Cu), % 0 to 0.0050
2.6 to 3.6
Iron (Fe), % 0 to 0.010
0 to 0.6
Lead (Pb), % 0 to 1.0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.55
Nickel (Ni), % 0
0 to 0.1
Silicon (Si), % 0
4.5 to 6.0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.020
0 to 0.25
Zinc (Zn), % 98.9 to 100
0 to 0.2
Residuals, % 0
0 to 0.15