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Titanium 6-7 vs. 2017 Aluminum

Titanium 6-7 belongs to the titanium alloys classification, while 2017 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is 2017 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
71
Elongation at Break, % 11
12 to 18
Fatigue Strength, MPa 530
90 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
27
Shear Strength, MPa 610
130 to 260
Tensile Strength: Ultimate (UTS), MPa 1020
190 to 430
Tensile Strength: Yield (Proof), MPa 900
76 to 260

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 300
190
Melting Completion (Liquidus), °C 1700
640
Melting Onset (Solidus), °C 1650
510
Specific Heat Capacity, J/kg-K 520
880
Thermal Expansion, µm/m-K 9.3
24

Otherwise Unclassified Properties

Base Metal Price, % relative 75
10
Density, g/cm3 5.1
3.0
Embodied Carbon, kg CO2/kg material 34
8.0
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 190
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
24 to 66
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
41 to 470
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 32
46
Strength to Weight: Axial, points 56
17 to 40
Strength to Weight: Bending, points 44
24 to 42
Thermal Shock Resistance, points 66
7.9 to 18

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
91.6 to 95.5
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 0.0090
0
Iron (Fe), % 0 to 0.25
0 to 0.7
Magnesium (Mg), % 0
0.4 to 0.8
Manganese (Mn), % 0
0.4 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
0
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0.2 to 0.8
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15