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Titanium 6-5-0.5 vs. 6018 Aluminum

Titanium 6-5-0.5 belongs to the titanium alloys classification, while 6018 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 titanium 6-5-0.5 and the bottom bar is 6018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 6.7
9.0 to 9.1
Fatigue Strength, MPa 530
85 to 89
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Shear Strength, MPa 630
170 to 180
Tensile Strength: Ultimate (UTS), MPa 1080
290 to 300
Tensile Strength: Yield (Proof), MPa 990
220 to 230

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 300
160
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
570
Specific Heat Capacity, J/kg-K 550
890
Thermal Conductivity, W/m-K 4.2
170
Thermal Expansion, µm/m-K 9.4
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
44
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
140

Otherwise Unclassified Properties

Base Metal Price, % relative 41
10
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 33
8.2
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
24 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
360 to 380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
48
Strength to Weight: Axial, points 67
28 to 29
Strength to Weight: Bending, points 52
34 to 35
Thermal Diffusivity, mm2/s 1.7
65
Thermal Shock Resistance, points 79
13

Alloy Composition


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Aluminum (Al), % 5.7 to 6.3
93.1 to 97.8
Bismuth (Bi), % 0
0.4 to 0.7
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
0.15 to 0.4
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.7
Lead (Pb), % 0
0.4 to 1.2
Magnesium (Mg), % 0
0.6 to 1.2
Manganese (Mn), % 0
0.3 to 0.8
Molybdenum (Mo), % 0.25 to 0.75
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.19
0
Silicon (Si), % 0 to 0.4
0.5 to 1.2
Titanium (Ti), % 85.6 to 90.1
0 to 0.2
Zinc (Zn), % 0
0 to 0.3
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0 to 0.15