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443.0 Aluminum vs. ZK40A Magnesium

443.0 aluminum belongs to the aluminum alloys classification, while ZK40A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 443.0 aluminum and the bottom bar is ZK40A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 5.6
4.2
Fatigue Strength, MPa 55
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 96
160
Tensile Strength: Ultimate (UTS), MPa 150
280
Tensile Strength: Yield (Proof), MPa 65
260

Thermal Properties

Latent Heat of Fusion, J/g 470
340
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 580
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
27
Electrical Conductivity: Equal Weight (Specific), % IACS 130
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
12
Resilience: Unit (Modulus of Resilience), kJ/m3 30
740
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
65
Strength to Weight: Axial, points 16
43
Strength to Weight: Bending, points 23
53
Thermal Diffusivity, mm2/s 61
62
Thermal Shock Resistance, points 6.9
17

Alloy Composition

Aluminum (Al), % 90.7 to 95.5
0
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 0 to 0.050
94.2 to 96.1
Manganese (Mn), % 0 to 0.5
0
Silicon (Si), % 4.5 to 6.0
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.5
3.5 to 4.5
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3