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4004 Aluminum vs. ZE63A Magnesium

4004 aluminum belongs to the aluminum alloys classification, while ZE63A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 4004 aluminum and the bottom bar is ZE63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 2.4
7.7
Fatigue Strength, MPa 42
120
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 63
170
Tensile Strength: Ultimate (UTS), MPa 110
300
Tensile Strength: Yield (Proof), MPa 60
190

Thermal Properties

Latent Heat of Fusion, J/g 540
330
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 600
510
Melting Onset (Solidus), °C 560
390
Specific Heat Capacity, J/kg-K 910
950
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
31
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.6
2.0
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1070
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
20
Resilience: Unit (Modulus of Resilience), kJ/m3 25
400
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 54
58
Strength to Weight: Axial, points 12
40
Strength to Weight: Bending, points 20
48
Thermal Diffusivity, mm2/s 58
57
Thermal Shock Resistance, points 5.1
17

Alloy Composition

Aluminum (Al), % 86 to 90
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 1.0 to 2.0
89.6 to 92
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 9.0 to 10.5
0
Unspecified Rare Earths, % 0
2.1 to 3.0
Zinc (Zn), % 0 to 0.2
5.5 to 6.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3