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5082 Aluminum vs. EN-MC21210 Magnesium

5082 aluminum belongs to the aluminum alloys classification, while EN-MC21210 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 5082 aluminum and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
44
Elongation at Break, % 1.1
14
Fatigue Strength, MPa 110 to 130
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
17
Shear Strength, MPa 210 to 230
110
Tensile Strength: Ultimate (UTS), MPa 380 to 400
190
Tensile Strength: Yield (Proof), MPa 300 to 340
90

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 560
570
Specific Heat Capacity, J/kg-K 910
1000
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
24
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.6
Embodied Carbon, kg CO2/kg material 8.9
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 4.3
22
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 870
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
72
Strength to Weight: Axial, points 39 to 41
32
Strength to Weight: Bending, points 43 to 45
44
Thermal Diffusivity, mm2/s 54
76
Thermal Shock Resistance, points 17 to 18
11

Alloy Composition

Aluminum (Al), % 93.5 to 96
1.6 to 2.6
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0 to 0.010
Iron (Fe), % 0 to 0.35
0 to 0.0050
Magnesium (Mg), % 4.0 to 5.0
96.3 to 98.3
Manganese (Mn), % 0 to 0.15
0.1 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.2
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0 to 0.2
Residuals, % 0
0 to 0.010