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Zamak 5 vs. EN AC-51500 Aluminum

Zamak 5 belongs to the zinc alloys classification, while EN AC-51500 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-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
80
Elastic (Young's, Tensile) Modulus, GPa 87
68
Elongation at Break, % 6.3
5.6
Fatigue Strength, MPa 56
120
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
26
Tensile Strength: Ultimate (UTS), MPa 330
280
Tensile Strength: Yield (Proof), MPa 240
160

Thermal Properties

Latent Heat of Fusion, J/g 120
430
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
630
Melting Onset (Solidus), °C 380
590
Specific Heat Capacity, J/kg-K 410
910
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
26
Electrical Conductivity: Equal Weight (Specific), % IACS 37
88

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 6.4
2.6
Embodied Carbon, kg CO2/kg material 3.0
9.0
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
13
Resilience: Unit (Modulus of Resilience), kJ/m3 330
190
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
52
Strength to Weight: Axial, points 14
29
Strength to Weight: Bending, points 16
36
Thermal Diffusivity, mm2/s 42
49
Thermal Shock Resistance, points 9.9
13

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
89.8 to 93.1
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
0 to 0.050
Iron (Fe), % 0 to 0.1
0 to 0.25
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
4.7 to 6.0
Manganese (Mn), % 0
0.4 to 0.8
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
1.8 to 2.6
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 94.3 to 95.7
0 to 0.070
Residuals, % 0
0 to 0.15