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4004 Aluminum vs. ZK60A Magnesium

4004 aluminum belongs to the aluminum alloys classification, while ZK60A 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 4004 aluminum and the bottom bar is ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 2.4
4.5 to 9.9
Fatigue Strength, MPa 42
150 to 180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 63
170 to 190
Tensile Strength: Ultimate (UTS), MPa 110
320 to 330
Tensile Strength: Yield (Proof), MPa 60
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 540
330
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 910
960
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
1.9
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1070
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 25
570 to 690
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
63
Strength to Weight: Axial, points 12
47 to 49
Strength to Weight: Bending, points 20
55 to 56
Thermal Diffusivity, mm2/s 58
66
Thermal Shock Resistance, points 5.1
19 to 20

Alloy Composition

Aluminum (Al), % 86 to 90
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 1.0 to 2.0
92.5 to 94.8
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 9.0 to 10.5
0
Zinc (Zn), % 0 to 0.2
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3