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EN AC-21100 Aluminum vs. QE22A Magnesium

EN AC-21100 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
80
Elastic (Young's, Tensile) Modulus, GPa 71
44
Elongation at Break, % 6.2 to 7.3
2.4
Fatigue Strength, MPa 79 to 87
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 340 to 350
250
Tensile Strength: Yield (Proof), MPa 210 to 240
190

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 670
640
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 880
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
25
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Density, g/cm3 3.0
2.0
Embodied Carbon, kg CO2/kg material 8.0
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
60
Strength to Weight: Axial, points 31 to 33
36
Strength to Weight: Bending, points 36 to 37
46
Thermal Diffusivity, mm2/s 48
59
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0
Copper (Cu), % 4.2 to 5.2
0 to 0.1
Iron (Fe), % 0 to 0.19
0
Magnesium (Mg), % 0
93.1 to 95.8
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.18
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0.15 to 0.3
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.070
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3