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Zamak 7 vs. 2007 Aluminum

Zamak 7 belongs to the zinc alloys classification, while 2007 aluminum belongs to the aluminum 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 Zamak 7 and the bottom bar is 2007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
71
Elongation at Break, % 13
5.6 to 8.0
Fatigue Strength, MPa 47
91 to 110
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
27
Shear Strength, MPa 210
220 to 250
Tensile Strength: Ultimate (UTS), MPa 280
370 to 420
Tensile Strength: Yield (Proof), MPa 250
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 120
390
Maximum Temperature: Mechanical, °C 95
190
Melting Completion (Liquidus), °C 390
640
Melting Onset (Solidus), °C 380
510
Specific Heat Capacity, J/kg-K 410
870
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
47
Electrical Conductivity: Equal Weight (Specific), % IACS 38
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 6.4
3.1
Embodied Carbon, kg CO2/kg material 3.0
8.0
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
21 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 370
390 to 530
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
44
Strength to Weight: Axial, points 12
33 to 38
Strength to Weight: Bending, points 15
37 to 40
Thermal Diffusivity, mm2/s 43
48
Thermal Shock Resistance, points 8.6
16 to 19

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
87.5 to 95
Bismuth (Bi), % 0
0 to 0.2
Cadmium (Cd), % 0 to 0.0020
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
3.3 to 4.6
Iron (Fe), % 0 to 0.075
0 to 0.8
Lead (Pb), % 0 to 0.0030
0.8 to 1.5
Magnesium (Mg), % 0.0050 to 0.020
0.4 to 1.8
Manganese (Mn), % 0
0.5 to 1.0
Nickel (Ni), % 0.0050 to 0.020
0 to 0.2
Silicon (Si), % 0
0 to 0.8
Tin (Sn), % 0 to 0.0010
0 to 0.2
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 95.3 to 96.5
0 to 0.8
Residuals, % 0
0 to 0.3