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Grade 20 Titanium vs. 2014A Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 2014A aluminum belongs to the aluminum 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.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is 2014A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
72
Elongation at Break, % 5.7 to 17
6.2 to 16
Fatigue Strength, MPa 550 to 630
93 to 150
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
27
Shear Strength, MPa 560 to 740
130 to 290
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
210 to 490
Tensile Strength: Yield (Proof), MPa 850 to 1190
110 to 430

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 370
210
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1600
510
Specific Heat Capacity, J/kg-K 520
870
Thermal Expansion, µm/m-K 9.6
23

Otherwise Unclassified Properties

Density, g/cm3 5.0
3.0
Embodied Carbon, kg CO2/kg material 52
8.1
Embodied Energy, MJ/kg 860
150
Embodied Water, L/kg 350
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
24 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
85 to 1300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 33
46
Strength to Weight: Axial, points 50 to 70
19 to 45
Strength to Weight: Bending, points 41 to 52
26 to 46
Thermal Shock Resistance, points 55 to 77
9.0 to 22

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
90.8 to 95
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.1
Copper (Cu), % 0
3.9 to 5.0
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0
0.4 to 1.2
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
0 to 0.1
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
0.5 to 0.9
Titanium (Ti), % 71 to 77
0 to 0.15
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 3.5 to 4.5
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants