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5449 Aluminum vs. ZC63A Magnesium

5449 aluminum belongs to the aluminum alloys classification, while ZC63A 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 5449 aluminum and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
48
Elongation at Break, % 4.0 to 17
3.3
Fatigue Strength, MPa 78 to 120
94
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
19
Shear Strength, MPa 130 to 190
130
Tensile Strength: Ultimate (UTS), MPa 210 to 330
220
Tensile Strength: Yield (Proof), MPa 91 to 260
130

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 190
98
Melting Completion (Liquidus), °C 650
550
Melting Onset (Solidus), °C 590
470
Specific Heat Capacity, J/kg-K 900
950
Thermal Conductivity, W/m-K 140
120
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
32
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.8
2.1
Embodied Carbon, kg CO2/kg material 8.5
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
58
Strength to Weight: Axial, points 22 to 33
29
Strength to Weight: Bending, points 29 to 39
38
Thermal Diffusivity, mm2/s 56
58
Thermal Shock Resistance, points 9.4 to 15
12

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
2.4 to 3.0
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.6 to 2.6
89.2 to 91.9
Manganese (Mn), % 0.6 to 1.1
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.2
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
5.5 to 6.5
Residuals, % 0
0 to 0.3