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Z21721 Zinc vs. 6063A Aluminum

Z21721 zinc belongs to the zinc alloys classification, while 6063A 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 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
68
Elongation at Break, % 40
6.7 to 18
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
26
Tensile Strength: Ultimate (UTS), MPa 150
130 to 260
Tensile Strength: Yield (Proof), MPa 120
55 to 200

Thermal Properties

Latent Heat of Fusion, J/g 110
400
Maximum Temperature: Mechanical, °C 90
160
Melting Completion (Liquidus), °C 410
640
Melting Onset (Solidus), °C 390
620
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 110
200
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
49 to 54
Electrical Conductivity: Equal Weight (Specific), % IACS 37
160 to 180

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 6.6
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 340
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
13 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 88
22 to 280
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 22
50
Strength to Weight: Axial, points 6.4
13 to 26
Strength to Weight: Bending, points 9.6
21 to 33
Thermal Diffusivity, mm2/s 44
83
Thermal Shock Resistance, points 4.8
5.6 to 11

Alloy Composition

Aluminum (Al), % 0 to 0.0020
97.5 to 99
Cadmium (Cd), % 0 to 0.070
0
Chromium (Cr), % 0
0 to 0.050
Copper (Cu), % 0 to 0.0050
0 to 0.1
Iron (Fe), % 0 to 0.010
0.15 to 0.35
Lead (Pb), % 0 to 1.0
0
Magnesium (Mg), % 0
0.6 to 0.9
Manganese (Mn), % 0
0 to 0.15
Silicon (Si), % 0
0.3 to 0.6
Titanium (Ti), % 0 to 0.020
0 to 0.1
Zinc (Zn), % 98.9 to 100
0 to 0.15
Residuals, % 0
0 to 0.15