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EN AC-21100 Aluminum vs. Commercially Pure Zinc

EN AC-21100 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 (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 EN AC-21100 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, % 6.2 to 7.3
38
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 27
35
Tensile Strength: Ultimate (UTS), MPa 340 to 350
97
Tensile Strength: Yield (Proof), MPa 210 to 240
79

Thermal Properties

Latent Heat of Fusion, J/g 390
110
Maximum Temperature: Mechanical, °C 170
90
Melting Completion (Liquidus), °C 670
410
Melting Onset (Solidus), °C 550
400
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
27
Electrical Conductivity: Equal Weight (Specific), % IACS 100
37

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.0
6.6
Embodied Carbon, kg CO2/kg material 8.0
2.8
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1150
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
34
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
36
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 46
23
Strength to Weight: Axial, points 31 to 33
4.1
Strength to Weight: Bending, points 36 to 37
7.1
Thermal Diffusivity, mm2/s 48
44
Thermal Shock Resistance, points 15
3.0

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0 to 0.010
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 4.2 to 5.2
0 to 0.080
Iron (Fe), % 0 to 0.19
0 to 0.020
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 0.55
0
Silicon (Si), % 0 to 0.18
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0.15 to 0.3
0 to 0.020
Zinc (Zn), % 0 to 0.070
99.827 to 100
Residuals, % 0 to 0.1
0