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7076 Aluminum vs. Zamak 5

7076 aluminum belongs to the aluminum alloys classification, while Zamak 5 belongs to the zinc alloys. There are 31 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 7076 aluminum and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
92
Elastic (Young's, Tensile) Modulus, GPa 70
87
Elongation at Break, % 6.2
6.3
Fatigue Strength, MPa 170
56
Poisson's Ratio 0.32
0.25
Shear Modulus, GPa 27
33
Shear Strength, MPa 310
260
Tensile Strength: Ultimate (UTS), MPa 530
330
Tensile Strength: Yield (Proof), MPa 460
240

Thermal Properties

Latent Heat of Fusion, J/g 380
120
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 630
390
Melting Onset (Solidus), °C 460
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
26
Electrical Conductivity: Equal Weight (Specific), % IACS 100
37

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
6.4
Embodied Carbon, kg CO2/kg material 8.0
3.0
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1110
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
19
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
330
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 49
14
Strength to Weight: Bending, points 48
16
Thermal Diffusivity, mm2/s 54
42
Thermal Shock Resistance, points 23
9.9

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0.3 to 1.0
0.7 to 1.3
Iron (Fe), % 0 to 0.6
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 1.2 to 2.0
0.025 to 0.080
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
94.3 to 95.7
Residuals, % 0 to 0.15
0