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EN AC-42100 Aluminum vs. Zamak 7

EN AC-42100 aluminum belongs to the aluminum alloys classification, while Zamak 7 belongs to the zinc alloys. There are 30 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 EN AC-42100 aluminum and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
80
Elastic (Young's, Tensile) Modulus, GPa 70
86
Elongation at Break, % 3.4 to 9.0
13
Fatigue Strength, MPa 76 to 82
47
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 26
33
Tensile Strength: Ultimate (UTS), MPa 280 to 290
280
Tensile Strength: Yield (Proof), MPa 210 to 230
250

Thermal Properties

Latent Heat of Fusion, J/g 500
120
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 610
390
Melting Onset (Solidus), °C 600
380
Specific Heat Capacity, J/kg-K 910
410
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
38

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.6
6.4
Embodied Carbon, kg CO2/kg material 8.0
3.0
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1110
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
36
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
370
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 53
23
Strength to Weight: Axial, points 30 to 31
12
Strength to Weight: Bending, points 37 to 38
15
Thermal Diffusivity, mm2/s 66
43
Thermal Shock Resistance, points 13
8.6

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.19
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0.25 to 0.45
0.0050 to 0.020
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0.0050 to 0.020
Silicon (Si), % 6.5 to 7.5
0
Tin (Sn), % 0
0 to 0.0010
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
95.3 to 96.5
Residuals, % 0 to 0.1
0