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Titanium 6-7 vs. 7108 Aluminum

Titanium 6-7 belongs to the titanium alloys classification, while 7108 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 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 11
11
Fatigue Strength, MPa 530
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
26
Shear Strength, MPa 610
210
Tensile Strength: Ultimate (UTS), MPa 1020
350
Tensile Strength: Yield (Proof), MPa 900
290

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 300
210
Melting Completion (Liquidus), °C 1700
630
Melting Onset (Solidus), °C 1650
530
Specific Heat Capacity, J/kg-K 520
880
Thermal Expansion, µm/m-K 9.3
24

Otherwise Unclassified Properties

Base Metal Price, % relative 75
9.5
Density, g/cm3 5.1
2.9
Embodied Carbon, kg CO2/kg material 34
8.3
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 190
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
38
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
620
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 32
47
Strength to Weight: Axial, points 56
34
Strength to Weight: Bending, points 44
38
Thermal Shock Resistance, points 66
16

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
92.4 to 94.7
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
0 to 0.1
Magnesium (Mg), % 0
0.7 to 1.4
Manganese (Mn), % 0
0 to 0.050
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 to 0.1
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0 to 0.050
Zinc (Zn), % 0
4.5 to 5.5
Zirconium (Zr), % 0
0.12 to 0.25
Residuals, % 0
0 to 0.15