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QE22A Magnesium vs. Grade 37 Titanium

QE22A magnesium belongs to the magnesium alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, 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 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.4
22
Fatigue Strength, MPa 110
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Shear Strength, MPa 150
240
Tensile Strength: Ultimate (UTS), MPa 250
390
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 340
420
Maximum Temperature: Mechanical, °C 250
310
Melting Completion (Liquidus), °C 640
1650
Melting Onset (Solidus), °C 570
1600
Specific Heat Capacity, J/kg-K 970
550
Thermal Conductivity, W/m-K 110
21
Thermal Expansion, µm/m-K 27
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
6.8

Otherwise Unclassified Properties

Density, g/cm3 2.0
4.5
Embodied Carbon, kg CO2/kg material 27
31
Embodied Energy, MJ/kg 220
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
76
Resilience: Unit (Modulus of Resilience), kJ/m3 400
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 60
35
Strength to Weight: Axial, points 36
24
Strength to Weight: Bending, points 46
26
Thermal Diffusivity, mm2/s 59
8.4
Thermal Shock Resistance, points 15
29

Alloy Composition


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Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.3
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 0.25
Silver (Ag), % 2.0 to 3.0
0
Titanium (Ti), % 0
96.9 to 99
Unspecified Rare Earths, % 1.8 to 2.5
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.4