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3103 Aluminum vs. QE22A Magnesium

3103 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 3103 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 27 to 62
80
Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 1.1 to 28
2.4
Fatigue Strength, MPa 38 to 83
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 68 to 130
150
Tensile Strength: Ultimate (UTS), MPa 100 to 220
250
Tensile Strength: Yield (Proof), MPa 39 to 200
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 190
250
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 640
570
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 160
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 2.8
2.0
Embodied Carbon, kg CO2/kg material 8.2
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4 to 24
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 280
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
60
Strength to Weight: Axial, points 10 to 22
36
Strength to Weight: Bending, points 18 to 30
46
Thermal Diffusivity, mm2/s 64
59
Thermal Shock Resistance, points 4.6 to 9.9
15

Alloy Composition

Aluminum (Al), % 96.3 to 99.1
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0 to 0.3
93.1 to 95.8
Manganese (Mn), % 0.9 to 1.5
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.1
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0 to 0.1
0.4 to 1.0
Residuals, % 0
0 to 0.3