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QE22A Magnesium vs. Grade 23 Titanium

QE22A magnesium belongs to the magnesium alloys classification, while grade 23 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is QE22A magnesium and the bottom bar is grade 23 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.4
6.7 to 11
Fatigue Strength, MPa 110
470 to 500
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Shear Strength, MPa 150
540 to 570
Tensile Strength: Ultimate (UTS), MPa 250
930 to 940
Tensile Strength: Yield (Proof), MPa 190
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 250
340
Melting Completion (Liquidus), °C 640
1610
Melting Onset (Solidus), °C 570
1560
Specific Heat Capacity, J/kg-K 970
560
Thermal Conductivity, W/m-K 110
7.1
Thermal Expansion, µm/m-K 27
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.0

Otherwise Unclassified Properties

Density, g/cm3 2.0
4.4
Embodied Carbon, kg CO2/kg material 27
38
Embodied Energy, MJ/kg 220
610

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
61 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 400
3430 to 3560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 60
35
Strength to Weight: Axial, points 36
58 to 59
Strength to Weight: Bending, points 46
48
Thermal Diffusivity, mm2/s 59
2.9
Thermal Shock Resistance, points 15
67 to 68

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 93.1 to 95.8
0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Silver (Ag), % 2.0 to 3.0
0
Titanium (Ti), % 0
88.1 to 91
Unspecified Rare Earths, % 1.8 to 2.5
0
Vanadium (V), % 0
3.5 to 4.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.4