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5449 Aluminum vs. AZ92A Magnesium

5449 aluminum belongs to the aluminum alloys classification, while AZ92A 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 5449 aluminum and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
47
Elongation at Break, % 4.0 to 17
2.1 to 6.8
Fatigue Strength, MPa 78 to 120
76 to 90
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 130 to 190
97 to 160
Tensile Strength: Ultimate (UTS), MPa 210 to 330
170 to 270
Tensile Strength: Yield (Proof), MPa 91 to 260
83 to 140

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 650
590
Melting Onset (Solidus), °C 590
440
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 140
44 to 58
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 110
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.8
Embodied Carbon, kg CO2/kg material 8.5
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
4.0 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
73 to 220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
67
Strength to Weight: Axial, points 22 to 33
26 to 41
Strength to Weight: Bending, points 29 to 39
38 to 51
Thermal Diffusivity, mm2/s 56
25 to 33
Thermal Shock Resistance, points 9.4 to 15
10 to 16

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
8.3 to 9.7
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.6 to 2.6
86.7 to 90
Manganese (Mn), % 0.6 to 1.1
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.3
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
1.6 to 2.4
Residuals, % 0
0 to 0.3