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6463 Aluminum vs. EQ21A Magnesium

6463 aluminum belongs to the aluminum alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 6463 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 42 to 74
80
Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 9.0 to 17
2.4
Fatigue Strength, MPa 45 to 76
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 86 to 150
150
Tensile Strength: Ultimate (UTS), MPa 140 to 230
250
Tensile Strength: Yield (Proof), MPa 82 to 200
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 620
560
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 190 to 210
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
25
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
120

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 14 to 24
37
Strength to Weight: Bending, points 22 to 31
47
Thermal Diffusivity, mm2/s 79 to 86
62
Thermal Shock Resistance, points 6.3 to 10
15

Alloy Composition

Aluminum (Al), % 97.9 to 99.4
0
Copper (Cu), % 0 to 0.2
0.050 to 0.1
Iron (Fe), % 0 to 0.15
0
Magnesium (Mg), % 0.45 to 0.9
93.9 to 96.8
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.2 to 0.6
0
Silver (Ag), % 0
1.3 to 1.7
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 0.050
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3