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Zamak 5 vs. EN AC-45100 Aluminum

Zamak 5 belongs to the zinc alloys classification, while EN AC-45100 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-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
97 to 130
Elastic (Young's, Tensile) Modulus, GPa 87
72
Elongation at Break, % 6.3
1.0 to 2.8
Fatigue Strength, MPa 56
82 to 99
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
27
Tensile Strength: Ultimate (UTS), MPa 330
300 to 360
Tensile Strength: Yield (Proof), MPa 240
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 120
470
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
630
Melting Onset (Solidus), °C 380
550
Specific Heat Capacity, J/kg-K 410
890
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
30
Electrical Conductivity: Equal Weight (Specific), % IACS 37
95

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 6.4
2.8
Embodied Carbon, kg CO2/kg material 3.0
7.9
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
3.5 to 7.6
Resilience: Unit (Modulus of Resilience), kJ/m3 330
290 to 710
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
49
Strength to Weight: Axial, points 14
30 to 35
Strength to Weight: Bending, points 16
35 to 39
Thermal Diffusivity, mm2/s 42
54
Thermal Shock Resistance, points 9.9
14 to 16

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
88 to 92.8
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
2.6 to 3.6
Iron (Fe), % 0 to 0.1
0 to 0.6
Lead (Pb), % 0 to 0.0050
0 to 0.1
Magnesium (Mg), % 0.025 to 0.080
0.15 to 0.45
Manganese (Mn), % 0
0 to 0.55
Nickel (Ni), % 0 to 0.020
0 to 0.1
Silicon (Si), % 0 to 0.030
4.5 to 6.0
Tin (Sn), % 0 to 0.0030
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 94.3 to 95.7
0 to 0.2
Residuals, % 0
0 to 0.15