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Grade 20 Titanium vs. 5059 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 5059 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 5059 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 5.7 to 17
11 to 25
Fatigue Strength, MPa 550 to 630
170 to 240
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Shear Strength, MPa 560 to 740
220 to 250
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
350 to 410
Tensile Strength: Yield (Proof), MPa 850 to 1190
170 to 300

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 370
210
Melting Completion (Liquidus), °C 1660
650
Melting Onset (Solidus), °C 1600
510
Specific Heat Capacity, J/kg-K 520
900
Thermal Expansion, µm/m-K 9.6
24

Otherwise Unclassified Properties

Density, g/cm3 5.0
2.7
Embodied Carbon, kg CO2/kg material 52
9.1
Embodied Energy, MJ/kg 860
160
Embodied Water, L/kg 350
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
220 to 650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
50
Strength to Weight: Axial, points 50 to 70
36 to 42
Strength to Weight: Bending, points 41 to 52
41 to 45
Thermal Shock Resistance, points 55 to 77
16 to 18

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
89.9 to 94
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.25
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Magnesium (Mg), % 0
5.0 to 6.0
Manganese (Mn), % 0
0.6 to 1.2
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 0.45
Titanium (Ti), % 71 to 77
0 to 0.2
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0.4 to 0.9
Zirconium (Zr), % 3.5 to 4.5
0.050 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants