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EN-MC21210 Magnesium vs. 5049 Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while 5049 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is EN-MC21210 magnesium and the bottom bar is 5049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 14
2.0 to 18
Fatigue Strength, MPa 70
79 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 110
130 to 190
Tensile Strength: Ultimate (UTS), MPa 190
210 to 330
Tensile Strength: Yield (Proof), MPa 90
91 to 280

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 100
190
Melting Completion (Liquidus), °C 600
650
Melting Onset (Solidus), °C 570
620
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
35
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 24
8.5
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
6.0 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 92
59 to 570
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 32
22 to 34
Strength to Weight: Bending, points 44
29 to 39
Thermal Diffusivity, mm2/s 76
56
Thermal Shock Resistance, points 11
9.3 to 15

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
94.7 to 97.9
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.010
0 to 0.1
Iron (Fe), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 96.3 to 98.3
1.6 to 2.5
Manganese (Mn), % 0.1 to 0.7
0.5 to 1.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0 to 0.4
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0 to 0.010
0 to 0.15