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Grade 20 Titanium vs. 6063A Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 6063A 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 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
68
Elongation at Break, % 5.7 to 17
6.7 to 18
Fatigue Strength, MPa 550 to 630
53 to 80
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Shear Strength, MPa 560 to 740
78 to 150
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
130 to 260
Tensile Strength: Yield (Proof), MPa 850 to 1190
55 to 200

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 370
160
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1600
620
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
8.3
Embodied Energy, MJ/kg 860
150
Embodied Water, L/kg 350
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
13 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
22 to 280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
50
Strength to Weight: Axial, points 50 to 70
13 to 26
Strength to Weight: Bending, points 41 to 52
21 to 33
Thermal Shock Resistance, points 55 to 77
5.6 to 11

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
97.5 to 99
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.050
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0.15 to 0.35
Magnesium (Mg), % 0
0.6 to 0.9
Manganese (Mn), % 0
0 to 0.15
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
0.3 to 0.6
Titanium (Ti), % 71 to 77
0 to 0.1
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 0.15
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.15

Comparable Variants