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QE22A Magnesium vs. 6151 Aluminum

QE22A magnesium belongs to the magnesium alloys classification, while 6151 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is QE22A magnesium and the bottom bar is 6151 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 2.4
1.1 to 5.7
Fatigue Strength, MPa 110
80 to 100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
190 to 200
Tensile Strength: Ultimate (UTS), MPa 250
330 to 340
Tensile Strength: Yield (Proof), MPa 190
270 to 280

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 250
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 570
590
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 110
170
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
45
Electrical Conductivity: Equal Weight (Specific), % IACS 120
150

Otherwise Unclassified Properties

Density, g/cm3 2.0
2.7
Embodied Carbon, kg CO2/kg material 27
8.2
Embodied Energy, MJ/kg 220
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
3.5 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 400
520 to 580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 60
50
Strength to Weight: Axial, points 36
34
Strength to Weight: Bending, points 46
39
Thermal Diffusivity, mm2/s 59
70
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 0
95.6 to 98.8
Chromium (Cr), % 0
0.15 to 0.35
Copper (Cu), % 0 to 0.1
0 to 0.35
Iron (Fe), % 0
0 to 1.0
Magnesium (Mg), % 93.1 to 95.8
0.45 to 0.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.6 to 1.2
Silver (Ag), % 2.0 to 3.0
0
Titanium (Ti), % 0
0 to 0.15
Unspecified Rare Earths, % 1.8 to 2.5
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15