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6065 Aluminum vs. Titanium 6-7

6065 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 6065 aluminum and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
120
Elongation at Break, % 4.5 to 11
11
Fatigue Strength, MPa 96 to 110
530
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
45
Shear Strength, MPa 190 to 230
610
Tensile Strength: Ultimate (UTS), MPa 310 to 400
1020
Tensile Strength: Yield (Proof), MPa 270 to 380
900

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 180
300
Melting Completion (Liquidus), °C 640
1700
Melting Onset (Solidus), °C 590
1650
Specific Heat Capacity, J/kg-K 890
520
Thermal Expansion, µm/m-K 23
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
75
Density, g/cm3 2.8
5.1
Embodied Carbon, kg CO2/kg material 8.4
34
Embodied Energy, MJ/kg 150
540
Embodied Water, L/kg 1200
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
110
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
32
Strength to Weight: Axial, points 31 to 40
56
Strength to Weight: Bending, points 36 to 43
44
Thermal Shock Resistance, points 14 to 18
66

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
5.5 to 6.5
Bismuth (Bi), % 0.5 to 1.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0.15 to 0.4
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.7
0 to 0.25
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0 to 0.15
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), % 0.4 to 0.8
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.1
84.9 to 88
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0 to 0.15
0