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2025 Aluminum vs. QE22A Magnesium

2025 aluminum belongs to the aluminum alloys classification, while QE22A magnesium belongs to the magnesium 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 2025 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
80
Elastic (Young's, Tensile) Modulus, GPa 72
44
Elongation at Break, % 15
2.4
Fatigue Strength, MPa 130
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 240
150
Tensile Strength: Ultimate (UTS), MPa 400
250
Tensile Strength: Yield (Proof), MPa 260
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 190
250
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 520
570
Specific Heat Capacity, J/kg-K 870
970
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
25
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Density, g/cm3 3.0
2.0
Embodied Carbon, kg CO2/kg material 7.9
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 450
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
60
Strength to Weight: Axial, points 37
36
Strength to Weight: Bending, points 40
46
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 18
15

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.9 to 5.0
0 to 0.1
Iron (Fe), % 0 to 1.0
0
Magnesium (Mg), % 0 to 0.050
93.1 to 95.8
Manganese (Mn), % 0.4 to 1.2
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.5 to 1.2
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3