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EN-MC65120 Magnesium vs. 6101B Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 6101B 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-MC65120 magnesium and the bottom bar is 6101B aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
68
Elongation at Break, % 3.1
9.1 to 13
Fatigue Strength, MPa 80
62 to 70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 92
120 to 150
Tensile Strength: Ultimate (UTS), MPa 160
190 to 250
Tensile Strength: Yield (Proof), MPa 110
140 to 180

Thermal Properties

Latent Heat of Fusion, J/g 330
400
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
630
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 100
210
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
57
Electrical Conductivity: Equal Weight (Specific), % IACS 120
190

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 25
8.3
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
20 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140 to 240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
50
Strength to Weight: Axial, points 23
20 to 25
Strength to Weight: Bending, points 34
27 to 32
Thermal Diffusivity, mm2/s 56
87
Thermal Shock Resistance, points 9.8
8.5 to 11

Alloy Composition


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Aluminum (Al), % 0
98.2 to 99.3
Copper (Cu), % 0 to 0.030
0 to 0.050
Iron (Fe), % 0 to 0.010
0.1 to 0.3
Magnesium (Mg), % 91.8 to 95.1
0.35 to 0.6
Manganese (Mn), % 0 to 0.15
0 to 0.050
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0.3 to 0.6
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.1