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Grade 24 Titanium vs. 2007 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while 2007 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 2007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 11
5.6 to 8.0
Fatigue Strength, MPa 550
91 to 110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Shear Strength, MPa 610
220 to 250
Tensile Strength: Ultimate (UTS), MPa 1010
370 to 420
Tensile Strength: Yield (Proof), MPa 940
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 340
190
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
510
Specific Heat Capacity, J/kg-K 560
870
Thermal Conductivity, W/m-K 7.1
130
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
47
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
140

Otherwise Unclassified Properties

Density, g/cm3 4.5
3.1
Embodied Carbon, kg CO2/kg material 43
8.0
Embodied Energy, MJ/kg 710
150
Embodied Water, L/kg 310
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
21 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
390 to 530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
44
Strength to Weight: Axial, points 63
33 to 38
Strength to Weight: Bending, points 50
37 to 40
Thermal Diffusivity, mm2/s 2.9
48
Thermal Shock Resistance, points 72
16 to 19

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
87.5 to 95
Bismuth (Bi), % 0
0 to 0.2
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
3.3 to 4.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.8
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 0
0.4 to 1.8
Manganese (Mn), % 0
0.5 to 1.0
Nickel (Ni), % 0
0 to 0.2
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 to 0.8
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 87.5 to 91
0 to 0.2
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0 to 0.4
0 to 0.3