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Titanium 6-5-0.5 vs. 2018 Aluminum

Titanium 6-5-0.5 belongs to the titanium alloys classification, while 2018 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 titanium 6-5-0.5 and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
73
Elongation at Break, % 6.7
9.6
Fatigue Strength, MPa 530
120
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Shear Strength, MPa 630
270
Tensile Strength: Ultimate (UTS), MPa 1080
420
Tensile Strength: Yield (Proof), MPa 990
310

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 300
220
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
510
Specific Heat Capacity, J/kg-K 550
870
Thermal Conductivity, W/m-K 4.2
150
Thermal Expansion, µm/m-K 9.4
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 41
11
Density, g/cm3 4.5
3.1
Embodied Carbon, kg CO2/kg material 33
8.1
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
37
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
45
Strength to Weight: Axial, points 67
38
Strength to Weight: Bending, points 52
41
Thermal Diffusivity, mm2/s 1.7
57
Thermal Shock Resistance, points 79
19

Alloy Composition


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Aluminum (Al), % 5.7 to 6.3
89.7 to 94.4
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
3.5 to 4.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 1.0
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0
0 to 0.2
Molybdenum (Mo), % 0.25 to 0.75
0
Nickel (Ni), % 0
1.7 to 2.3
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.19
0
Silicon (Si), % 0 to 0.4
0 to 0.9
Titanium (Ti), % 85.6 to 90.1
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0 to 0.15