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Grade 15 Titanium vs. 5049 Aluminum

Grade 15 titanium belongs to the titanium alloys classification, while 5049 aluminum belongs to the aluminum alloys. There are 30 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 15 titanium and the bottom bar is 5049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 20
2.0 to 18
Fatigue Strength, MPa 290
79 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
26
Shear Strength, MPa 340
130 to 190
Tensile Strength: Ultimate (UTS), MPa 540
210 to 330
Tensile Strength: Yield (Proof), MPa 430
91 to 280

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
190
Melting Completion (Liquidus), °C 1660
650
Melting Onset (Solidus), °C 1610
620
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
140
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
35
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 32
8.5
Embodied Energy, MJ/kg 520
150
Embodied Water, L/kg 210
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
6.0 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 870
59 to 570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 33
22 to 34
Strength to Weight: Bending, points 33
29 to 39
Thermal Diffusivity, mm2/s 8.4
56
Thermal Shock Resistance, points 41
9.3 to 15

Alloy Composition

Aluminum (Al), % 0
94.7 to 97.9
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Magnesium (Mg), % 0
1.6 to 2.5
Manganese (Mn), % 0
0.5 to 1.1
Nickel (Ni), % 0.4 to 0.6
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 98.2 to 99.56
0 to 0.1
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15