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4147 Aluminum vs. QE22A Magnesium

4147 aluminum belongs to the aluminum alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 28 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 4147 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
44
Elongation at Break, % 3.3
2.4
Fatigue Strength, MPa 42
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 63
150
Tensile Strength: Ultimate (UTS), MPa 110
250
Tensile Strength: Yield (Proof), MPa 59
190

Thermal Properties

Latent Heat of Fusion, J/g 570
340
Maximum Temperature: Mechanical, °C 160
250
Melting Completion (Liquidus), °C 580
640
Melting Onset (Solidus), °C 560
570
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
25
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Density, g/cm3 2.5
2.0
Embodied Carbon, kg CO2/kg material 7.7
27
Embodied Energy, MJ/kg 140
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 24
400
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
60
Strength to Weight: Axial, points 12
36
Strength to Weight: Bending, points 20
46
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 5.2
15

Alloy Composition

Aluminum (Al), % 85 to 88.9
0
Beryllium (Be), % 0 to 0.00030
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 0.1 to 0.5
93.1 to 95.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 11 to 13
0
Silver (Ag), % 0
2.0 to 3.0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3