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5254 Aluminum vs. AM100A Magnesium

5254 aluminum belongs to the aluminum alloys classification, while AM100A 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 5254 aluminum and the bottom bar is AM100A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
46
Elongation at Break, % 3.4 to 22
1.0 to 6.8
Fatigue Strength, MPa 110 to 160
48 to 70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 150 to 200
90 to 150
Tensile Strength: Ultimate (UTS), MPa 240 to 350
160 to 270
Tensile Strength: Yield (Proof), MPa 100 to 270
78 to 140

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
140
Melting Completion (Liquidus), °C 640
590
Melting Onset (Solidus), °C 590
460
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 130
73
Thermal Expansion, µm/m-K 24
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
59

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.8
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
1000

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 41
1.3 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 550
66 to 210
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
70
Strength to Weight: Axial, points 25 to 37
25 to 44
Strength to Weight: Bending, points 32 to 41
38 to 54
Thermal Diffusivity, mm2/s 52
43
Thermal Shock Resistance, points 10 to 16
9.7 to 17

Alloy Composition

Aluminum (Al), % 94.4 to 96.8
9.3 to 10.7
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.050
0 to 0.1
Iron (Fe), % 0 to 0.45
0
Magnesium (Mg), % 3.1 to 3.9
87.9 to 90.6
Manganese (Mn), % 0 to 0.010
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.45
0 to 0.3
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.2
0 to 0.3
Residuals, % 0
0 to 0.3