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5005A Aluminum vs. ZK40A Magnesium

5005A 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 (1, in this case) are not shown.

For each property being compared, the top bar is 5005A aluminum and the bottom bar is ZK40A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 1.1 to 21
4.2
Fatigue Strength, MPa 38 to 82
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 71 to 130
160
Tensile Strength: Ultimate (UTS), MPa 110 to 230
280
Tensile Strength: Yield (Proof), MPa 43 to 210
260

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 630
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 200
110
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 52
27
Electrical Conductivity: Equal Weight (Specific), % IACS 170
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0 to 19
12
Resilience: Unit (Modulus of Resilience), kJ/m3 14 to 310
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
65
Strength to Weight: Axial, points 12 to 24
43
Strength to Weight: Bending, points 19 to 31
53
Thermal Diffusivity, mm2/s 82
62
Thermal Shock Resistance, points 5.0 to 10
17

Alloy Composition

Aluminum (Al), % 97.5 to 99.3
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.45
0
Magnesium (Mg), % 0.7 to 1.1
94.2 to 96.1
Manganese (Mn), % 0 to 0.15
0
Silicon (Si), % 0 to 0.3
0
Zinc (Zn), % 0 to 0.2
3.5 to 4.5
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3