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QE22A Magnesium vs. 4147 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0
85 to 88.9
Beryllium (Be), % 0
0 to 0.00030
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0
0 to 0.8
Magnesium (Mg), % 93.1 to 95.8
0.1 to 0.5
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
11 to 13
Silver (Ag), % 2.0 to 3.0
0
Unspecified Rare Earths, % 1.8 to 2.5
0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15