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Grade 20 Titanium vs. 5457 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 5457 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 5457 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
68
Elongation at Break, % 5.7 to 17
6.0 to 22
Fatigue Strength, MPa 550 to 630
55 to 98
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Shear Strength, MPa 560 to 740
85 to 130
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
130 to 210
Tensile Strength: Yield (Proof), MPa 850 to 1190
50 to 190

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 370
180
Melting Completion (Liquidus), °C 1660
660
Melting Onset (Solidus), °C 1600
630
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
8.4
Embodied Energy, MJ/kg 860
160
Embodied Water, L/kg 350
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
18 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
50
Strength to Weight: Axial, points 50 to 70
13 to 21
Strength to Weight: Bending, points 41 to 52
21 to 28
Thermal Shock Resistance, points 55 to 77
5.7 to 9.0

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
97.8 to 99.05
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.1
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0
0.15 to 0.45
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 0.080
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.1

Comparable Variants