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6081 Aluminum vs. EN-MC65210 Magnesium

6081 aluminum belongs to the aluminum alloys classification, while EN-MC65210 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 6081 aluminum and the bottom bar is EN-MC65210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
44
Elongation at Break, % 9.0
2.8
Fatigue Strength, MPa 110
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 180
150
Tensile Strength: Ultimate (UTS), MPa 310
270
Tensile Strength: Yield (Proof), MPa 270
200

Thermal Properties

Latent Heat of Fusion, J/g 410
340
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 610
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 180
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
25
Electrical Conductivity: Equal Weight (Specific), % IACS 160
110

Otherwise Unclassified Properties

Density, g/cm3 2.7
2.0
Embodied Carbon, kg CO2/kg material 8.3
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 540
450
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 50
59
Strength to Weight: Axial, points 32
38
Strength to Weight: Bending, points 37
47
Thermal Diffusivity, mm2/s 74
58
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.010
Magnesium (Mg), % 0.6 to 1.0
92.6 to 95.6
Manganese (Mn), % 0.1 to 0.45
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.7 to 1.1
0 to 0.010
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.2
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010