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5457 Aluminum vs. Zamak 7

5457 aluminum belongs to the aluminum alloys classification, while Zamak 7 belongs to the zinc alloys. There are 31 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 5457 aluminum and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 32 to 55
80
Elastic (Young's, Tensile) Modulus, GPa 68
86
Elongation at Break, % 6.0 to 22
13
Fatigue Strength, MPa 55 to 98
47
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 26
33
Shear Strength, MPa 85 to 130
210
Tensile Strength: Ultimate (UTS), MPa 130 to 210
280
Tensile Strength: Yield (Proof), MPa 50 to 190
250

Thermal Properties

Latent Heat of Fusion, J/g 400
120
Maximum Temperature: Mechanical, °C 180
95
Melting Completion (Liquidus), °C 660
390
Melting Onset (Solidus), °C 630
380
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 180
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
27
Electrical Conductivity: Equal Weight (Specific), % IACS 150
38

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
6.4
Embodied Carbon, kg CO2/kg material 8.4
3.0
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 1190
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
36
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 250
370
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 13 to 21
12
Strength to Weight: Bending, points 21 to 28
15
Thermal Diffusivity, mm2/s 72
43
Thermal Shock Resistance, points 5.7 to 9.0
8.6

Alloy Composition


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Aluminum (Al), % 97.8 to 99.05
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 0 to 0.1
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0.8 to 1.2
0.0050 to 0.020
Manganese (Mn), % 0.15 to 0.45
0
Nickel (Ni), % 0
0.0050 to 0.020
Silicon (Si), % 0 to 0.080
0
Tin (Sn), % 0
0 to 0.0010
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
95.3 to 96.5
Residuals, % 0 to 0.1
0