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Zamak 5 vs. EN AC-46400 Aluminum

Zamak 5 belongs to the zinc alloys classification, while EN AC-46400 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 EN AC-46400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
77 to 120
Elastic (Young's, Tensile) Modulus, GPa 87
72
Elongation at Break, % 6.3
1.1 to 1.7
Fatigue Strength, MPa 56
75 to 85
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
27
Tensile Strength: Ultimate (UTS), MPa 330
170 to 310
Tensile Strength: Yield (Proof), MPa 240
110 to 270

Thermal Properties

Latent Heat of Fusion, J/g 120
520
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
610
Melting Onset (Solidus), °C 380
570
Specific Heat Capacity, J/kg-K 410
890
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
33
Electrical Conductivity: Equal Weight (Specific), % IACS 37
110

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
7.8
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
1.7 to 4.9
Resilience: Unit (Modulus of Resilience), kJ/m3 330
82 to 500
Stiffness to Weight: Axial, points 7.5
15
Stiffness to Weight: Bending, points 23
52
Strength to Weight: Axial, points 14
18 to 32
Strength to Weight: Bending, points 16
26 to 38
Thermal Diffusivity, mm2/s 42
55
Thermal Shock Resistance, points 9.9
7.8 to 14

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
85.4 to 90.5
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
0.8 to 1.3
Iron (Fe), % 0 to 0.1
0 to 0.8
Lead (Pb), % 0 to 0.0050
0 to 0.1
Magnesium (Mg), % 0.025 to 0.080
0.25 to 0.65
Manganese (Mn), % 0
0.15 to 0.55
Nickel (Ni), % 0 to 0.020
0 to 0.2
Silicon (Si), % 0 to 0.030
8.3 to 9.7
Tin (Sn), % 0 to 0.0030
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 94.3 to 95.7
0 to 0.8
Residuals, % 0
0 to 0.25