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7049 Aluminum vs. Z20301 Zinc

7049 aluminum belongs to the aluminum alloys classification, while Z20301 zinc belongs to the zinc 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 7049 aluminum and the bottom bar is Z20301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
87
Elongation at Break, % 6.2 to 7.0
53
Poisson's Ratio 0.32
0.25
Shear Modulus, GPa 27
35
Tensile Strength: Ultimate (UTS), MPa 510 to 530
160
Tensile Strength: Yield (Proof), MPa 420 to 450
130

Thermal Properties

Latent Heat of Fusion, J/g 370
110
Maximum Temperature: Mechanical, °C 180
90
Melting Completion (Liquidus), °C 640
410
Melting Onset (Solidus), °C 480
400
Specific Heat Capacity, J/kg-K 860
390
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
27
Electrical Conductivity: Equal Weight (Specific), % IACS 110
37

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 3.1
6.6
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 1110
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
78
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
96
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 46 to 47
6.7
Strength to Weight: Bending, points 46 to 47
9.9
Thermal Diffusivity, mm2/s 51
44
Thermal Shock Resistance, points 22 to 23
5.0

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.010
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0 to 0.0050
Iron (Fe), % 0 to 0.35
0 to 0.010
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.1
0 to 0.020
Zinc (Zn), % 7.2 to 8.2
99.853 to 100
Residuals, % 0 to 0.15
0