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EN-MC21210 Magnesium vs. 5042 Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while 5042 aluminum belongs to the aluminum 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 EN-MC21210 magnesium and the bottom bar is 5042 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 14
1.1 to 3.4
Fatigue Strength, MPa 70
97 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 110
200
Tensile Strength: Ultimate (UTS), MPa 190
340 to 360
Tensile Strength: Yield (Proof), MPa 90
270 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 100
180
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 570
570
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
33
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
8.8
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
3.6 to 12
Resilience: Unit (Modulus of Resilience), kJ/m3 92
550 to 720
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 32
35 to 37
Strength to Weight: Bending, points 44
40 to 42
Thermal Diffusivity, mm2/s 76
53
Thermal Shock Resistance, points 11
15 to 16

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
94.2 to 96.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.010
0 to 0.15
Iron (Fe), % 0 to 0.0050
0 to 0.35
Magnesium (Mg), % 96.3 to 98.3
3.0 to 4.0
Manganese (Mn), % 0.1 to 0.7
0.2 to 0.5
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0 to 0.2
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0 to 0.010
0 to 0.15