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Z21721 Zinc vs. 2195 Aluminum

Z21721 zinc belongs to the zinc alloys classification, while 2195 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 Z21721 zinc and the bottom bar is 2195 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
69
Elongation at Break, % 40
9.3
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 35
26
Tensile Strength: Ultimate (UTS), MPa 150
590
Tensile Strength: Yield (Proof), MPa 120
560

Thermal Properties

Latent Heat of Fusion, J/g 110
390
Maximum Temperature: Mechanical, °C 90
210
Melting Completion (Liquidus), °C 410
660
Melting Onset (Solidus), °C 390
550
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 6.6
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.6
Embodied Energy, MJ/kg 53
160
Embodied Water, L/kg 340
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
54
Resilience: Unit (Modulus of Resilience), kJ/m3 88
2290
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 22
46
Strength to Weight: Axial, points 6.4
55
Strength to Weight: Bending, points 9.6
53
Thermal Diffusivity, mm2/s 44
49
Thermal Shock Resistance, points 4.8
26

Alloy Composition


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Aluminum (Al), % 0 to 0.0020
91.9 to 94.9
Cadmium (Cd), % 0 to 0.070
0
Copper (Cu), % 0 to 0.0050
3.7 to 4.3
Iron (Fe), % 0 to 0.010
0 to 0.15
Lead (Pb), % 0 to 1.0
0
Lithium (Li), % 0
0.8 to 1.2
Magnesium (Mg), % 0
0.25 to 0.8
Manganese (Mn), % 0
0 to 0.25
Silicon (Si), % 0
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Titanium (Ti), % 0 to 0.020
0 to 0.1
Zinc (Zn), % 98.9 to 100
0 to 0.25
Zirconium (Zr), % 0
0.080 to 0.16
Residuals, % 0
0 to 0.15