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5088 Aluminum vs. Grade 20 Titanium

5088 aluminum belongs to the aluminum alloys classification, while grade 20 titanium belongs to the titanium 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 5088 aluminum and the bottom bar is grade 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
120
Elongation at Break, % 29
5.7 to 17
Fatigue Strength, MPa 180
550 to 630
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
47
Shear Strength, MPa 200
560 to 740
Tensile Strength: Ultimate (UTS), MPa 310
900 to 1270
Tensile Strength: Yield (Proof), MPa 150
850 to 1190

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 200
370
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 540
1600
Specific Heat Capacity, J/kg-K 900
520
Thermal Expansion, µm/m-K 24
9.6

Otherwise Unclassified Properties

Density, g/cm3 2.7
5.0
Embodied Carbon, kg CO2/kg material 9.0
52
Embodied Energy, MJ/kg 150
860
Embodied Water, L/kg 1180
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 170
2940 to 5760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
33
Strength to Weight: Axial, points 32
50 to 70
Strength to Weight: Bending, points 38
41 to 52
Thermal Shock Resistance, points 14
55 to 77

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
3.0 to 4.0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.15
5.5 to 6.5
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 0.1 to 0.35
0 to 0.3
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.2 to 0.5
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0
71 to 77
Vanadium (V), % 0
7.5 to 8.5
Zinc (Zn), % 0.2 to 0.4
0
Zirconium (Zr), % 0 to 0.15
3.5 to 4.5
Residuals, % 0
0 to 0.4