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7050 Aluminum vs. Zamak 3

7050 aluminum belongs to the aluminum alloys classification, while Zamak 3 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, 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 7050 aluminum and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
86
Elongation at Break, % 2.2 to 12
11
Fatigue Strength, MPa 130 to 210
48
Poisson's Ratio 0.32
0.25
Shear Modulus, GPa 26
33
Shear Strength, MPa 280 to 330
210
Tensile Strength: Ultimate (UTS), MPa 490 to 570
280
Tensile Strength: Yield (Proof), MPa 390 to 500
210

Thermal Properties

Latent Heat of Fusion, J/g 370
120
Maximum Temperature: Mechanical, °C 190
95
Melting Completion (Liquidus), °C 630
390
Melting Onset (Solidus), °C 490
380
Specific Heat Capacity, J/kg-K 860
410
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
27
Electrical Conductivity: Equal Weight (Specific), % IACS 100
38

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 3.1
6.4
Embodied Carbon, kg CO2/kg material 8.2
3.0
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1120
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 55
28
Resilience: Unit (Modulus of Resilience), kJ/m3 1110 to 1760
260
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 45 to 51
12
Strength to Weight: Bending, points 45 to 50
15
Thermal Diffusivity, mm2/s 54
43
Thermal Shock Resistance, points 21 to 25
8.6

Alloy Composition

Aluminum (Al), % 87.3 to 92.1
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 2.0 to 2.6
0 to 0.25
Iron (Fe), % 0 to 0.15
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 1.9 to 2.6
0.020 to 0.060
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0 to 0.12
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.7 to 6.7
95.3 to 96.5
Zirconium (Zr), % 0.080 to 0.15
0
Residuals, % 0 to 0.15
0