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Zamak 5 vs. 6101A Aluminum

Zamak 5 belongs to the zinc alloys classification, while 6101A 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 6101A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
68
Elongation at Break, % 6.3
11
Fatigue Strength, MPa 56
80
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
26
Shear Strength, MPa 260
130
Tensile Strength: Ultimate (UTS), MPa 330
220
Tensile Strength: Yield (Proof), MPa 240
190

Thermal Properties

Latent Heat of Fusion, J/g 120
400
Maximum Temperature: Mechanical, °C 95
160
Melting Completion (Liquidus), °C 390
640
Melting Onset (Solidus), °C 380
630
Specific Heat Capacity, J/kg-K 410
900
Thermal Conductivity, W/m-K 110
200
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
55
Electrical Conductivity: Equal Weight (Specific), % IACS 37
180

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 6.4
2.7
Embodied Carbon, kg CO2/kg material 3.0
8.3
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
24
Resilience: Unit (Modulus of Resilience), kJ/m3 330
280
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
51
Strength to Weight: Axial, points 14
23
Strength to Weight: Bending, points 16
30
Thermal Diffusivity, mm2/s 42
84
Thermal Shock Resistance, points 9.9
10

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
97.9 to 99.3
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
0 to 0.050
Iron (Fe), % 0 to 0.1
0 to 0.4
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
0.4 to 0.9
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0.3 to 0.7
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 94.3 to 95.7
0
Residuals, % 0
0 to 0.1