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Grade 20 Titanium vs. 5657 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 5657 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 5657 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
68
Elongation at Break, % 5.7 to 17
6.6 to 15
Fatigue Strength, MPa 550 to 630
74 to 88
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Shear Strength, MPa 560 to 740
92 to 110
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
150 to 200
Tensile Strength: Yield (Proof), MPa 850 to 1190
140 to 170

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
640
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
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
9.7 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
140 to 200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
50
Strength to Weight: Axial, points 50 to 70
15 to 20
Strength to Weight: Bending, points 41 to 52
23 to 28
Thermal Shock Resistance, points 55 to 77
6.7 to 8.6

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
98.5 to 99.4
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0
Copper (Cu), % 0
0 to 0.1
Gallium (Ga), % 0
0 to 0.030
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.1
Magnesium (Mg), % 0
0.6 to 1.0
Manganese (Mn), % 0
0 to 0.030
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 0.050

Comparable Variants