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Grade 24 Titanium vs. 4115 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while 4115 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 11
1.1 to 11
Fatigue Strength, MPa 550
39 to 76
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Shear Strength, MPa 610
71 to 130
Tensile Strength: Ultimate (UTS), MPa 1010
120 to 220
Tensile Strength: Yield (Proof), MPa 940
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 340
160
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
590
Specific Heat Capacity, J/kg-K 560
900
Thermal Conductivity, W/m-K 7.1
160
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
41
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
140

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 43
8.1
Embodied Energy, MJ/kg 710
150
Embodied Water, L/kg 310
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
11 to 270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 63
12 to 23
Strength to Weight: Bending, points 50
20 to 30
Thermal Diffusivity, mm2/s 2.9
66
Thermal Shock Resistance, points 72
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
94.6 to 97.4
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.1 to 0.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0
0.6 to 1.2
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
1.8 to 2.2
Titanium (Ti), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0 to 0.4
0 to 0.15