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5454 Aluminum vs. ZK51A Magnesium

5454 aluminum belongs to the aluminum alloys classification, while ZK51A 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 5454 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 2.3 to 18
4.7
Fatigue Strength, MPa 83 to 160
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 140 to 200
160
Tensile Strength: Ultimate (UTS), MPa 230 to 350
240
Tensile Strength: Yield (Proof), MPa 97 to 290
150

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 600
550
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
28
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.6
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3 to 34
10
Resilience: Unit (Modulus of Resilience), kJ/m3 68 to 590
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
64
Strength to Weight: Axial, points 23 to 36
36
Strength to Weight: Bending, points 30 to 41
47
Thermal Diffusivity, mm2/s 55
61
Thermal Shock Resistance, points 10 to 16
15

Alloy Composition

Aluminum (Al), % 94.5 to 97.1
0
Chromium (Cr), % 0.050 to 0.2
0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 2.4 to 3.0
93.1 to 95.9
Manganese (Mn), % 0.5 to 1.0
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3