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Grade 20 Titanium vs. ISO-WD43150 Magnesium

Grade 20 titanium belongs to the titanium alloys classification, while ISO-WD43150 magnesium belongs to the magnesium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 grade 20 titanium and the bottom bar is ISO-WD43150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
45
Elongation at Break, % 5.7 to 17
2.8
Fatigue Strength, MPa 550 to 630
100
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 47
18
Shear Strength, MPa 560 to 740
140
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
250
Tensile Strength: Yield (Proof), MPa 850 to 1190
150

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 370
95
Melting Completion (Liquidus), °C 1660
610
Melting Onset (Solidus), °C 1600
590
Specific Heat Capacity, J/kg-K 520
990
Thermal Expansion, µm/m-K 9.6
27

Otherwise Unclassified Properties

Density, g/cm3 5.0
1.7
Embodied Carbon, kg CO2/kg material 52
24
Embodied Energy, MJ/kg 860
160
Embodied Water, L/kg 350
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 33
71
Strength to Weight: Axial, points 50 to 70
41
Strength to Weight: Bending, points 41 to 52
52
Thermal Shock Resistance, points 55 to 77
14

Alloy Composition


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Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0
Magnesium (Mg), % 0
97.5 to 98.8
Manganese (Mn), % 0
1.2 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0 to 0.3