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5050 Aluminum vs. AS41A Magnesium

5050 aluminum belongs to the aluminum alloys classification, while AS41A 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 5050 aluminum and the bottom bar is AS41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 1.7 to 22
11
Fatigue Strength, MPa 45 to 100
100
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 91 to 140
130
Tensile Strength: Ultimate (UTS), MPa 140 to 250
230
Tensile Strength: Yield (Proof), MPa 50 to 210
140

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 630
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 190
68
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50
17
Electrical Conductivity: Equal Weight (Specific), % IACS 170
92

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.6
Embodied Carbon, kg CO2/kg material 8.4
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1 to 24
21
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 330
220
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 15 to 26
38
Strength to Weight: Bending, points 22 to 33
50
Thermal Diffusivity, mm2/s 79
41
Thermal Shock Resistance, points 6.3 to 11
14

Alloy Composition

Aluminum (Al), % 96.3 to 98.9
3.5 to 5.0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.2
0 to 0.060
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.1 to 1.8
92.8 to 95.8
Manganese (Mn), % 0 to 0.1
0.2 to 0.5
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0.5 to 1.5
Zinc (Zn), % 0 to 0.25
0 to 0.12
Residuals, % 0 to 0.15
0