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Zamak 5 vs. 5657 Aluminum

Zamak 5 belongs to the zinc alloys classification, while 5657 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 5657 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
40 to 50
Elastic (Young's, Tensile) Modulus, GPa 87
68
Elongation at Break, % 6.3
6.6 to 15
Fatigue Strength, MPa 56
74 to 88
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
26
Shear Strength, MPa 260
92 to 110
Tensile Strength: Ultimate (UTS), MPa 330
150 to 200
Tensile Strength: Yield (Proof), MPa 240
140 to 170

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
640
Specific Heat Capacity, J/kg-K 410
900
Thermal Conductivity, W/m-K 110
210
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
54
Electrical Conductivity: Equal Weight (Specific), % IACS 37
180

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
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
9.7 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 330
140 to 200
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
50
Strength to Weight: Axial, points 14
15 to 20
Strength to Weight: Bending, points 16
23 to 28
Thermal Diffusivity, mm2/s 42
84
Thermal Shock Resistance, points 9.9
6.7 to 8.6

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
98.5 to 99.4
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
0 to 0.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
0.6 to 1.0
Manganese (Mn), % 0
0 to 0.030
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 0.050