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238.0 Aluminum vs. QE22A Magnesium

238.0 aluminum belongs to the aluminum alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
44
Elongation at Break, % 1.5
2.4
Fatigue Strength, MPa 110
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Tensile Strength: Ultimate (UTS), MPa 210
250
Tensile Strength: Yield (Proof), MPa 170
190

Thermal Properties

Latent Heat of Fusion, J/g 430
340
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 510
570
Specific Heat Capacity, J/kg-K 840
970
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
25
Electrical Conductivity: Equal Weight (Specific), % IACS 67
120

Otherwise Unclassified Properties

Density, g/cm3 3.4
2.0
Embodied Carbon, kg CO2/kg material 7.4
27
Embodied Energy, MJ/kg 140
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 180
400
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
60
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 23
46
Thermal Diffusivity, mm2/s 37
59
Thermal Shock Resistance, points 9.1
15

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Copper (Cu), % 9.5 to 10.5
0 to 0.1
Iron (Fe), % 1.0 to 1.5
0
Magnesium (Mg), % 0 to 0.25
93.1 to 95.8
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 3.6 to 4.4
0
Silver (Ag), % 0
2.0 to 3.0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 1.0 to 1.5
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3