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Zamak 7 vs. 357.0 Aluminum

Zamak 7 belongs to the zinc alloys classification, while 357.0 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 357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
95
Elastic (Young's, Tensile) Modulus, GPa 86
70
Elongation at Break, % 13
3.4
Fatigue Strength, MPa 47
76
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
26
Shear Strength, MPa 210
200
Tensile Strength: Ultimate (UTS), MPa 280
350
Tensile Strength: Yield (Proof), MPa 250
300

Thermal Properties

Latent Heat of Fusion, J/g 120
500
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
620
Melting Onset (Solidus), °C 380
560
Specific Heat Capacity, J/kg-K 410
910
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
39
Electrical Conductivity: Equal Weight (Specific), % IACS 38
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 6.4
2.6
Embodied Carbon, kg CO2/kg material 3.0
8.0
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
11
Resilience: Unit (Modulus of Resilience), kJ/m3 370
620
Stiffness to Weight: Axial, points 7.5
15
Stiffness to Weight: Bending, points 23
53
Strength to Weight: Axial, points 12
38
Strength to Weight: Bending, points 15
43
Thermal Diffusivity, mm2/s 43
64
Thermal Shock Resistance, points 8.6
17

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
91.3 to 93.1
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.075
0 to 0.15
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0.45 to 0.6
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0.0050 to 0.020
0
Silicon (Si), % 0
6.5 to 7.5
Tin (Sn), % 0 to 0.0010
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 95.3 to 96.5
0 to 0.050
Residuals, % 0
0 to 0.15