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Grade 20 Titanium vs. 5040 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 5040 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is 5040 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 5.7 to 17
5.7 to 6.8
Fatigue Strength, MPa 550 to 630
100 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Shear Strength, MPa 560 to 740
140 to 150
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
240 to 260
Tensile Strength: Yield (Proof), MPa 850 to 1190
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 370
190
Melting Completion (Liquidus), °C 1660
650
Melting Onset (Solidus), °C 1600
600
Specific Heat Capacity, J/kg-K 520
900
Thermal Expansion, µm/m-K 9.6
23

Otherwise Unclassified Properties

Density, g/cm3 5.0
2.8
Embodied Carbon, kg CO2/kg material 52
8.3
Embodied Energy, MJ/kg 860
150
Embodied Water, L/kg 350
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
14 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
260 to 380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
50
Strength to Weight: Axial, points 50 to 70
24 to 26
Strength to Weight: Bending, points 41 to 52
31 to 32
Thermal Shock Resistance, points 55 to 77
10 to 11

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
95.2 to 98
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0.1 to 0.3
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Magnesium (Mg), % 0
1.0 to 1.5
Manganese (Mn), % 0
0.9 to 1.4
Molybdenum (Mo), % 3.5 to 4.5
0
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 0.3
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.15

Comparable Variants