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QE22A Magnesium vs. Titanium 6-7

QE22A magnesium belongs to the magnesium alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, 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 titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 2.4
11
Fatigue Strength, MPa 110
530
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
45
Shear Strength, MPa 150
610
Tensile Strength: Ultimate (UTS), MPa 250
1020
Tensile Strength: Yield (Proof), MPa 190
900

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 250
300
Melting Completion (Liquidus), °C 640
1700
Melting Onset (Solidus), °C 570
1650
Specific Heat Capacity, J/kg-K 970
520
Thermal Expansion, µm/m-K 27
9.3

Otherwise Unclassified Properties

Density, g/cm3 2.0
5.1
Embodied Carbon, kg CO2/kg material 27
34
Embodied Energy, MJ/kg 220
540

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
110
Resilience: Unit (Modulus of Resilience), kJ/m3 400
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 60
32
Strength to Weight: Axial, points 36
56
Strength to Weight: Bending, points 46
44
Thermal Shock Resistance, points 15
66

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 0.0090
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 93.1 to 95.8
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silver (Ag), % 2.0 to 3.0
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Unspecified Rare Earths, % 1.8 to 2.5
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0