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Grade 15 Titanium vs. 5082 Aluminum

Grade 15 titanium belongs to the titanium alloys classification, while 5082 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 15 titanium and the bottom bar is 5082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
67
Elongation at Break, % 20
1.1
Fatigue Strength, MPa 290
110 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
25
Shear Strength, MPa 340
210 to 230
Tensile Strength: Ultimate (UTS), MPa 540
380 to 400
Tensile Strength: Yield (Proof), MPa 430
300 to 340

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
560
Specific Heat Capacity, J/kg-K 540
910
Thermal Conductivity, W/m-K 21
130
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
32
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
8.9
Embodied Energy, MJ/kg 520
150
Embodied Water, L/kg 210
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
4.0 to 4.3
Resilience: Unit (Modulus of Resilience), kJ/m3 870
670 to 870
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
51
Strength to Weight: Axial, points 33
39 to 41
Strength to Weight: Bending, points 33
43 to 45
Thermal Diffusivity, mm2/s 8.4
54
Thermal Shock Resistance, points 41
17 to 18

Alloy Composition

Aluminum (Al), % 0
93.5 to 96
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
0 to 0.15
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.35
Magnesium (Mg), % 0
4.0 to 5.0
Manganese (Mn), % 0
0 to 0.15
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 0.2
Titanium (Ti), % 98.2 to 99.56
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15