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5088 Aluminum vs. Grade 15 Titanium

5088 aluminum belongs to the aluminum alloys classification, while grade 15 titanium belongs to the titanium 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 5088 aluminum and the bottom bar is grade 15 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 29
20
Fatigue Strength, MPa 180
290
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
41
Shear Strength, MPa 200
340
Tensile Strength: Ultimate (UTS), MPa 310
540
Tensile Strength: Yield (Proof), MPa 150
430

Thermal Properties

Latent Heat of Fusion, J/g 390
420
Maximum Temperature: Mechanical, °C 200
320
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 540
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 98
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 9.0
32
Embodied Energy, MJ/kg 150
520
Embodied Water, L/kg 1180
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
100
Resilience: Unit (Modulus of Resilience), kJ/m3 170
870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 32
33
Strength to Weight: Bending, points 38
33
Thermal Diffusivity, mm2/s 51
8.4
Thermal Shock Resistance, points 14
41

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0.1 to 0.35
0 to 0.3
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0
98.2 to 99.56
Zinc (Zn), % 0.2 to 0.4
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.4