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EQ21A Magnesium vs. 6082 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 6082 aluminum belongs to the aluminum 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 EQ21A magnesium and the bottom bar is 6082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
40 to 95
Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 2.4
6.3 to 18
Fatigue Strength, MPa 110
55 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
84 to 220
Tensile Strength: Ultimate (UTS), MPa 250
140 to 340
Tensile Strength: Yield (Proof), MPa 190
85 to 320

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 560
580
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
160
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
42
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

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
19 to 43
Resilience: Unit (Modulus of Resilience), kJ/m3 410
52 to 710
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
50
Strength to Weight: Axial, points 37
14 to 35
Strength to Weight: Bending, points 47
21 to 40
Thermal Diffusivity, mm2/s 62
67
Thermal Shock Resistance, points 15
6.0 to 15

Alloy Composition


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Aluminum (Al), % 0
95.2 to 98.3
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0.050 to 0.1
0 to 0.1
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 93.9 to 96.8
0.6 to 1.2
Manganese (Mn), % 0
0.4 to 1.0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.7 to 1.3
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 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15