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EQ21A Magnesium vs. 6063 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 6063 aluminum belongs to the aluminum alloys. There are 30 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 6063 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
25 to 95
Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.4
7.3 to 21
Fatigue Strength, MPa 110
39 to 95
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
70 to 190
Tensile Strength: Ultimate (UTS), MPa 250
110 to 300
Tensile Strength: Yield (Proof), MPa 190
49 to 270

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 560
620
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
190 to 220
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
49 to 58
Electrical Conductivity: Equal Weight (Specific), % IACS 120
160 to 190

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
13 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 410
18 to 540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
50
Strength to Weight: Axial, points 37
11 to 31
Strength to Weight: Bending, points 47
18 to 37
Thermal Diffusivity, mm2/s 62
79 to 89
Thermal Shock Resistance, points 15
4.8 to 13

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.4
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.050 to 0.1
0 to 0.1
Iron (Fe), % 0
0 to 0.35
Magnesium (Mg), % 93.9 to 96.8
0.45 to 0.9
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.2 to 0.6
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.1
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15