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EQ21A Magnesium vs. 6065 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 6065 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 6065 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.4
4.5 to 11
Fatigue Strength, MPa 110
96 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
190 to 230
Tensile Strength: Ultimate (UTS), MPa 250
310 to 400
Tensile Strength: Yield (Proof), MPa 190
270 to 380

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 560
590
Specific Heat Capacity, J/kg-K 980
890
Thermal Conductivity, W/m-K 110
170
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
43
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 27
8.4
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
17 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 410
540 to 1040
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
49
Strength to Weight: Axial, points 37
31 to 40
Strength to Weight: Bending, points 47
36 to 43
Thermal Diffusivity, mm2/s 62
67
Thermal Shock Resistance, points 15
14 to 18

Alloy Composition


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Aluminum (Al), % 0
94.4 to 98.2
Bismuth (Bi), % 0
0.5 to 1.5
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0.050 to 0.1
0.15 to 0.4
Iron (Fe), % 0
0 to 0.7
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 93.9 to 96.8
0.8 to 1.2
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.4 to 0.8
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 0.25
Zirconium (Zr), % 0.4 to 1.0
0 to 0.15
Residuals, % 0 to 0.3
0 to 0.15