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238.0 Aluminum vs. Zamak 3

238.0 aluminum belongs to the aluminum alloys classification, while Zamak 3 belongs to the zinc alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
86
Elongation at Break, % 1.5
11
Fatigue Strength, MPa 110
48
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 28
33
Tensile Strength: Ultimate (UTS), MPa 210
280
Tensile Strength: Yield (Proof), MPa 170
210

Thermal Properties

Latent Heat of Fusion, J/g 430
120
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 600
390
Melting Onset (Solidus), °C 510
380
Specific Heat Capacity, J/kg-K 840
410
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 67
38

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 3.4
6.4
Embodied Carbon, kg CO2/kg material 7.4
3.0
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 1040
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
28
Resilience: Unit (Modulus of Resilience), kJ/m3 180
260
Stiffness to Weight: Axial, points 12
7.5
Stiffness to Weight: Bending, points 42
23
Strength to Weight: Axial, points 17
12
Strength to Weight: Bending, points 23
15
Thermal Diffusivity, mm2/s 37
43
Thermal Shock Resistance, points 9.1
8.6

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 9.5 to 10.5
0 to 0.25
Iron (Fe), % 1.0 to 1.5
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0 to 0.25
0.020 to 0.060
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 3.6 to 4.4
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 1.0 to 1.5
95.3 to 96.5