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Grade 24 Titanium vs. 851.0 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 11
3.9 to 9.1
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 1010
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 340
180
Melting Completion (Liquidus), °C 1610
630
Melting Onset (Solidus), °C 1560
360
Specific Heat Capacity, J/kg-K 560
850
Thermal Conductivity, W/m-K 7.1
180
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
46
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
8.4
Embodied Energy, MJ/kg 710
160
Embodied Water, L/kg 310
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
45
Strength to Weight: Axial, points 63
12 to 13
Strength to Weight: Bending, points 50
19 to 20
Thermal Diffusivity, mm2/s 2.9
69
Thermal Shock Resistance, points 72
6.1 to 6.3

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
86.6 to 91.5
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.7 to 1.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0.3 to 0.7
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
2.0 to 3.0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 87.5 to 91
0 to 0.2
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0 to 0.3