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Grade 20 Titanium vs. 8011A Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 8011A aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is 8011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 5.7 to 17
1.7 to 28
Fatigue Strength, MPa 550 to 630
33 to 76
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
100 to 180
Tensile Strength: Yield (Proof), MPa 850 to 1190
34 to 170

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 370
170
Melting Completion (Liquidus), °C 1660
650
Melting Onset (Solidus), °C 1600
630
Specific Heat Capacity, J/kg-K 520
900
Thermal Expansion, µm/m-K 9.6
23

Otherwise Unclassified Properties

Density, g/cm3 5.0
2.7
Embodied Carbon, kg CO2/kg material 52
8.2
Embodied Energy, MJ/kg 860
150
Embodied Water, L/kg 350
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
3.0 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
8.2 to 200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
50
Strength to Weight: Axial, points 50 to 70
11 to 18
Strength to Weight: Bending, points 41 to 52
18 to 26
Thermal Shock Resistance, points 55 to 77
4.6 to 8.1

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
97.5 to 99.1
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.1
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0.5 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
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
0.4 to 0.8
Titanium (Ti), % 71 to 77
0 to 0.050
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.15

Comparable Variants