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Zamak 5 vs. 242.0 Aluminum

Zamak 5 belongs to the zinc alloys classification, while 242.0 aluminum belongs to the aluminum alloys. There are 32 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 5 and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
70 to 110
Elastic (Young's, Tensile) Modulus, GPa 87
73
Elongation at Break, % 6.3
0.5 to 1.5
Fatigue Strength, MPa 56
55 to 110
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
27
Shear Strength, MPa 260
150 to 240
Tensile Strength: Ultimate (UTS), MPa 330
180 to 290
Tensile Strength: Yield (Proof), MPa 240
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 120
390
Maximum Temperature: Mechanical, °C 95
210
Melting Completion (Liquidus), °C 390
640
Melting Onset (Solidus), °C 380
530
Solidification (Pattern Maker's) Shrinkage, % 1.2
1.3
Specific Heat Capacity, J/kg-K 410
870
Thermal Conductivity, W/m-K 110
130 to 170
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 37
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 6.4
3.1
Embodied Carbon, kg CO2/kg material 3.0
8.3
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 330
110 to 340
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 14
16 to 26
Strength to Weight: Bending, points 16
23 to 32
Thermal Diffusivity, mm2/s 42
50 to 62
Thermal Shock Resistance, points 9.9
8.0 to 13

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
88.4 to 93.6
Cadmium (Cd), % 0 to 0.0050
0
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0.7 to 1.3
3.5 to 4.5
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
1.2 to 1.8
Manganese (Mn), % 0
0 to 0.35
Nickel (Ni), % 0 to 0.020
1.7 to 2.3
Silicon (Si), % 0 to 0.030
0 to 0.7
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 94.3 to 95.7
0 to 0.35
Residuals, % 0
0 to 0.15