MakeItFrom.com
Menu (ESC)

Zamak 2 vs. 7108 Aluminum

Zamak 2 belongs to the zinc alloys classification, while 7108 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 2 and the bottom bar is 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
69
Elongation at Break, % 6.0
11
Fatigue Strength, MPa 59
120
Poisson's Ratio 0.26
0.33
Shear Modulus, GPa 33
26
Shear Strength, MPa 320
210
Tensile Strength: Ultimate (UTS), MPa 360
350
Tensile Strength: Yield (Proof), MPa 270
290

Thermal Properties

Latent Heat of Fusion, J/g 130
380
Maximum Temperature: Mechanical, °C 95
210
Melting Completion (Liquidus), °C 390
630
Melting Onset (Solidus), °C 380
530
Specific Heat Capacity, J/kg-K 410
880
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 28
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
39
Electrical Conductivity: Equal Weight (Specific), % IACS 35
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 6.5
2.9
Embodied Carbon, kg CO2/kg material 3.0
8.3
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
38
Resilience: Unit (Modulus of Resilience), kJ/m3 420
620
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
47
Strength to Weight: Axial, points 15
34
Strength to Weight: Bending, points 17
38
Thermal Diffusivity, mm2/s 41
59
Thermal Shock Resistance, points 11
16

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
92.4 to 94.7
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 2.5 to 3.3
0 to 0.050
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0.7 to 1.4
Manganese (Mn), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0 to 0.1
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 92.2 to 94
4.5 to 5.5
Zirconium (Zr), % 0
0.12 to 0.25
Residuals, % 0
0 to 0.15