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Zamak 5 vs. 5457 Aluminum

Zamak 5 belongs to the zinc alloys classification, while 5457 aluminum belongs to the aluminum 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 Zamak 5 and the bottom bar is 5457 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
32 to 55
Elastic (Young's, Tensile) Modulus, GPa 87
68
Elongation at Break, % 6.3
6.0 to 22
Fatigue Strength, MPa 56
55 to 98
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
26
Shear Strength, MPa 260
85 to 130
Tensile Strength: Ultimate (UTS), MPa 330
130 to 210
Tensile Strength: Yield (Proof), MPa 240
50 to 190

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
46
Electrical Conductivity: Equal Weight (Specific), % IACS 37
150

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 6.4
2.7
Embodied Carbon, kg CO2/kg material 3.0
8.4
Embodied Energy, MJ/kg 57
160
Embodied Water, L/kg 380
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 330
18 to 250
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
50
Strength to Weight: Axial, points 14
13 to 21
Strength to Weight: Bending, points 16
21 to 28
Thermal Diffusivity, mm2/s 42
72
Thermal Shock Resistance, points 9.9
5.7 to 9.0

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
97.8 to 99.05
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
0 to 0.2
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
0.8 to 1.2
Manganese (Mn), % 0
0.15 to 0.45
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0 to 0.0030
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 94.3 to 95.7
0 to 0.050
Residuals, % 0
0 to 0.1