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Grade 24 Titanium vs. 2017A Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while 2017A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is 2017A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 11
2.2 to 14
Fatigue Strength, MPa 550
92 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Shear Strength, MPa 610
120 to 270
Tensile Strength: Ultimate (UTS), MPa 1010
200 to 460
Tensile Strength: Yield (Proof), MPa 940
110 to 290

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 340
220
Melting Completion (Liquidus), °C 1610
650
Melting Onset (Solidus), °C 1560
510
Specific Heat Capacity, J/kg-K 560
880
Thermal Conductivity, W/m-K 7.1
150
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
100

Otherwise Unclassified Properties

Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 43
8.2
Embodied Energy, MJ/kg 710
150
Embodied Water, L/kg 310
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.7 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
90 to 570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 63
19 to 42
Strength to Weight: Bending, points 50
26 to 44
Thermal Diffusivity, mm2/s 2.9
56
Thermal Shock Resistance, points 72
8.9 to 20

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
91.3 to 95.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
3.5 to 4.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.7
Magnesium (Mg), % 0
0.4 to 1.0
Manganese (Mn), % 0
0.4 to 1.0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0.2 to 0.8
Titanium (Ti), % 87.5 to 91
0 to 0.25
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.4
0 to 0.15