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Titanium 6-5-0.5 vs. 7020 Aluminum

Titanium 6-5-0.5 belongs to the titanium alloys classification, while 7020 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 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 6.7
8.4 to 14
Fatigue Strength, MPa 530
110 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Shear Strength, MPa 630
110 to 230
Tensile Strength: Ultimate (UTS), MPa 1080
190 to 390
Tensile Strength: Yield (Proof), MPa 990
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 300
210
Melting Completion (Liquidus), °C 1610
650
Melting Onset (Solidus), °C 1560
610
Specific Heat Capacity, J/kg-K 550
880
Thermal Conductivity, W/m-K 4.2
150
Thermal Expansion, µm/m-K 9.4
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
39
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 41
9.5
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 33
8.3
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
110 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 67
18 to 37
Strength to Weight: Bending, points 52
25 to 41
Thermal Diffusivity, mm2/s 1.7
59
Thermal Shock Resistance, points 79
8.3 to 17

Alloy Composition

Aluminum (Al), % 5.7 to 6.3
91.2 to 94.8
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0.1 to 0.35
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.4
Magnesium (Mg), % 0
1.0 to 1.4
Manganese (Mn), % 0
0.050 to 0.5
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 to 0.35
Titanium (Ti), % 85.6 to 90.1
0 to 0.25
Zinc (Zn), % 0
4.0 to 5.0
Zirconium (Zr), % 4.0 to 6.0
0.080 to 0.25
Residuals, % 0 to 0.4
0 to 0.15