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A390.0 Aluminum vs. Zamak 7

A390.0 aluminum belongs to the aluminum alloys classification, while Zamak 7 belongs to the zinc alloys. There are 30 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 A390.0 aluminum and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
80
Elastic (Young's, Tensile) Modulus, GPa 75
86
Elongation at Break, % 0.87 to 0.91
13
Fatigue Strength, MPa 70 to 100
47
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 28
33
Tensile Strength: Ultimate (UTS), MPa 190 to 290
280
Tensile Strength: Yield (Proof), MPa 190 to 290
250

Thermal Properties

Latent Heat of Fusion, J/g 640
120
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 580
390
Melting Onset (Solidus), °C 480
380
Specific Heat Capacity, J/kg-K 880
410
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
27
Electrical Conductivity: Equal Weight (Specific), % IACS 67
38

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 2.7
6.4
Embodied Carbon, kg CO2/kg material 7.3
3.0
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 950
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6 to 2.6
36
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 580
370
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 52
23
Strength to Weight: Axial, points 19 to 30
12
Strength to Weight: Bending, points 27 to 36
15
Thermal Diffusivity, mm2/s 56
43
Thermal Shock Resistance, points 9.0 to 14
8.6

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 4.0 to 5.0
0 to 0.25
Iron (Fe), % 0 to 0.5
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0.45 to 0.65
0.0050 to 0.020
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0.0050 to 0.020
Silicon (Si), % 16 to 18
0
Tin (Sn), % 0
0 to 0.0010
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
95.3 to 96.5
Residuals, % 0 to 0.2
0