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7108A Aluminum vs. Titanium 6-7

7108A aluminum belongs to the aluminum alloys classification, while titanium 6-7 belongs to the titanium 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 7108A aluminum and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 11 to 13
11
Fatigue Strength, MPa 120 to 130
530
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
45
Shear Strength, MPa 210
610
Tensile Strength: Ultimate (UTS), MPa 350
1020
Tensile Strength: Yield (Proof), MPa 290 to 300
900

Thermal Properties

Latent Heat of Fusion, J/g 380
410
Maximum Temperature: Mechanical, °C 210
300
Melting Completion (Liquidus), °C 630
1700
Melting Onset (Solidus), °C 520
1650
Specific Heat Capacity, J/kg-K 870
520
Thermal Expansion, µm/m-K 24
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
75
Density, g/cm3 2.9
5.1
Embodied Carbon, kg CO2/kg material 8.3
34
Embodied Energy, MJ/kg 150
540
Embodied Water, L/kg 1150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
110
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
32
Strength to Weight: Axial, points 33 to 34
56
Strength to Weight: Bending, points 38
44
Thermal Shock Resistance, points 15 to 16
66

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
0
Gallium (Ga), % 0 to 0.030
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.3
0 to 0.25
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Molybdenum (Mo), % 0
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.2
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.030
84.9 to 88
Zinc (Zn), % 4.8 to 5.8
0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0