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QE22A Magnesium vs. Grade 20 Titanium

QE22A magnesium belongs to the magnesium alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 2.4
5.7 to 17
Fatigue Strength, MPa 110
550 to 630
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
47
Shear Strength, MPa 150
560 to 740
Tensile Strength: Ultimate (UTS), MPa 250
900 to 1270
Tensile Strength: Yield (Proof), MPa 190
850 to 1190

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 250
370
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 570
1600
Specific Heat Capacity, J/kg-K 970
520
Thermal Expansion, µm/m-K 27
9.6

Otherwise Unclassified Properties

Density, g/cm3 2.0
5.0
Embodied Carbon, kg CO2/kg material 27
52
Embodied Energy, MJ/kg 220
860

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 400
2940 to 5760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 60
33
Strength to Weight: Axial, points 36
50 to 70
Strength to Weight: Bending, points 46
41 to 52
Thermal Shock Resistance, points 15
55 to 77

Alloy Composition


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Aluminum (Al), % 0
3.0 to 4.0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
5.5 to 6.5
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 0
0 to 0.3
Magnesium (Mg), % 93.1 to 95.8
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Palladium (Pd), % 0
0.040 to 0.080
Silver (Ag), % 2.0 to 3.0
0
Titanium (Ti), % 0
71 to 77
Unspecified Rare Earths, % 1.8 to 2.5
0
Vanadium (V), % 0
7.5 to 8.5
Zirconium (Zr), % 0.4 to 1.0
3.5 to 4.5
Residuals, % 0 to 0.3
0 to 0.4