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Zamak 7 vs. 4032 Aluminum

Zamak 7 belongs to the zinc alloys classification, while 4032 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
120
Elastic (Young's, Tensile) Modulus, GPa 86
73
Elongation at Break, % 13
6.7
Fatigue Strength, MPa 47
110
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
28
Shear Strength, MPa 210
260
Tensile Strength: Ultimate (UTS), MPa 280
390
Tensile Strength: Yield (Proof), MPa 250
320

Thermal Properties

Latent Heat of Fusion, J/g 120
570
Maximum Temperature: Mechanical, °C 95
180
Melting Completion (Liquidus), °C 390
570
Melting Onset (Solidus), °C 380
530
Specific Heat Capacity, J/kg-K 410
900
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 27
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
34
Electrical Conductivity: Equal Weight (Specific), % IACS 38
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 6.4
2.6
Embodied Carbon, kg CO2/kg material 3.0
7.8
Embodied Energy, MJ/kg 57
140
Embodied Water, L/kg 380
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
25
Resilience: Unit (Modulus of Resilience), kJ/m3 370
700
Stiffness to Weight: Axial, points 7.5
15
Stiffness to Weight: Bending, points 23
53
Strength to Weight: Axial, points 12
41
Strength to Weight: Bending, points 15
45
Thermal Diffusivity, mm2/s 43
59
Thermal Shock Resistance, points 8.6
20

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
81.1 to 87.2
Cadmium (Cd), % 0 to 0.0020
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
0.5 to 1.3
Iron (Fe), % 0 to 0.075
0 to 1.0
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0.8 to 1.3
Nickel (Ni), % 0.0050 to 0.020
0.5 to 1.3
Silicon (Si), % 0
11 to 13.5
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0 to 0.25
Residuals, % 0
0 to 0.15