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3005 Aluminum vs. ZK40A Magnesium

3005 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 3005 aluminum and the bottom bar is ZK40A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 1.1 to 16
4.2
Fatigue Strength, MPa 53 to 100
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 84 to 150
160
Tensile Strength: Ultimate (UTS), MPa 140 to 270
280
Tensile Strength: Yield (Proof), MPa 51 to 240
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 640
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 160
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.8
1.8
Embodied Carbon, kg CO2/kg material 8.2
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 18
12
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 390
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
65
Strength to Weight: Axial, points 14 to 27
43
Strength to Weight: Bending, points 21 to 33
53
Thermal Diffusivity, mm2/s 64
62
Thermal Shock Resistance, points 6.0 to 12
17

Alloy Composition

Aluminum (Al), % 95.7 to 98.8
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.2 to 0.6
94.2 to 96.1
Manganese (Mn), % 1.0 to 1.5
0
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
3.5 to 4.5
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3