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Zamak 7 vs. 384.0 Aluminum

Zamak 7 belongs to the zinc alloys classification, while 384.0 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 384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
85
Elastic (Young's, Tensile) Modulus, GPa 86
74
Elongation at Break, % 13
2.5
Fatigue Strength, MPa 47
140
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
28
Shear Strength, MPa 210
200
Tensile Strength: Ultimate (UTS), MPa 280
330
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 120
550
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
580
Melting Onset (Solidus), °C 380
530
Specific Heat Capacity, J/kg-K 410
870
Thermal Conductivity, W/m-K 110
96
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
22
Electrical Conductivity: Equal Weight (Specific), % IACS 38
69

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 6.4
2.9
Embodied Carbon, kg CO2/kg material 3.0
7.4
Embodied Energy, MJ/kg 57
140
Embodied Water, L/kg 380
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 370
190
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
49
Strength to Weight: Axial, points 12
32
Strength to Weight: Bending, points 15
37
Thermal Diffusivity, mm2/s 43
39
Thermal Shock Resistance, points 8.6
15

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
77.3 to 86.5
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
3.0 to 4.5
Iron (Fe), % 0 to 0.075
0 to 1.3
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0.0050 to 0.020
0 to 0.5
Silicon (Si), % 0
10.5 to 12
Tin (Sn), % 0 to 0.0010
0 to 0.35
Zinc (Zn), % 95.3 to 96.5
0 to 3.0
Residuals, % 0
0 to 0.5