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2195 Aluminum vs. QE22A Magnesium

2195 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 2195 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
44
Elongation at Break, % 9.3
2.4
Fatigue Strength, MPa 190
110
Fracture Toughness, MPa-m1/2 30
15
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 350
150
Tensile Strength: Ultimate (UTS), MPa 590
250
Tensile Strength: Yield (Proof), MPa 560
190

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 210
250
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 900
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 8.6
27
Embodied Energy, MJ/kg 160
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 2290
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
60
Strength to Weight: Axial, points 55
36
Strength to Weight: Bending, points 53
46
Thermal Diffusivity, mm2/s 49
59
Thermal Shock Resistance, points 26
15

Alloy Composition

Aluminum (Al), % 91.9 to 94.9
0
Copper (Cu), % 3.7 to 4.3
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Lithium (Li), % 0.8 to 1.2
0
Magnesium (Mg), % 0.25 to 0.8
93.1 to 95.8
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.12
0
Silver (Ag), % 0.25 to 0.6
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 0.25
0
Zirconium (Zr), % 0.080 to 0.16
0.4 to 1.0
Residuals, % 0
0 to 0.3