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5070 Aluminum vs. Zamak 7

5070 aluminum belongs to the aluminum alloys classification, while Zamak 7 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 5070 aluminum and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
86
Elongation at Break, % 20
13
Fatigue Strength, MPa 150
47
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 26
33
Shear Strength, MPa 190
210
Tensile Strength: Ultimate (UTS), MPa 300
280
Tensile Strength: Yield (Proof), MPa 140
250

Thermal Properties

Latent Heat of Fusion, J/g 390
120
Maximum Temperature: Mechanical, °C 190
95
Melting Completion (Liquidus), °C 640
390
Melting Onset (Solidus), °C 550
380
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
27
Electrical Conductivity: Equal Weight (Specific), % IACS 100
38

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
6.4
Embodied Carbon, kg CO2/kg material 8.8
3.0
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1170
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
36
Resilience: Unit (Modulus of Resilience), kJ/m3 150
370
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 31
12
Strength to Weight: Bending, points 37
15
Thermal Diffusivity, mm2/s 53
43
Thermal Shock Resistance, points 14
8.6

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.4
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 3.5 to 4.5
0.0050 to 0.020
Manganese (Mn), % 0.4 to 0.8
0
Nickel (Ni), % 0
0.0050 to 0.020
Silicon (Si), % 0 to 0.25
0
Tin (Sn), % 0
0 to 0.0010
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0.4 to 0.8
95.3 to 96.5
Residuals, % 0 to 0.15
0