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EQ21A Magnesium vs. 6101A Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 6101A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EQ21A magnesium and the bottom bar is 6101A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.4
11
Fatigue Strength, MPa 110
80
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
130
Tensile Strength: Ultimate (UTS), MPa 250
220
Tensile Strength: Yield (Proof), MPa 190
190

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 560
630
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
200
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
55
Electrical Conductivity: Equal Weight (Specific), % IACS 120
180

Otherwise Unclassified Properties

Base Metal Price, % relative 80
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 27
8.3
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
24
Resilience: Unit (Modulus of Resilience), kJ/m3 410
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
51
Strength to Weight: Axial, points 37
23
Strength to Weight: Bending, points 47
30
Thermal Diffusivity, mm2/s 62
84
Thermal Shock Resistance, points 15
10

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.3
Copper (Cu), % 0.050 to 0.1
0 to 0.050
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 93.9 to 96.8
0.4 to 0.9
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.3 to 0.7
Silver (Ag), % 1.3 to 1.7
0
Unspecified Rare Earths, % 1.5 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.1