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Grade 6 Titanium vs. 7116 Aluminum

Grade 6 titanium belongs to the titanium alloys classification, while 7116 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 11
7.8
Fatigue Strength, MPa 290
160
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
26
Shear Strength, MPa 530
220
Tensile Strength: Ultimate (UTS), MPa 890
370
Tensile Strength: Yield (Proof), MPa 840
330

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 310
170
Melting Completion (Liquidus), °C 1580
640
Melting Onset (Solidus), °C 1530
520
Specific Heat Capacity, J/kg-K 550
880
Thermal Conductivity, W/m-K 7.8
150
Thermal Expansion, µm/m-K 9.4
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
46
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 30
8.2
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
28
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
790
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 55
35
Strength to Weight: Bending, points 46
39
Thermal Diffusivity, mm2/s 3.2
58
Thermal Shock Resistance, points 65
16

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
91.5 to 94.5
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.5 to 1.1
Gallium (Ga), % 0
0 to 0.030
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 0
0.8 to 1.4
Manganese (Mn), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
4.2 to 5.2
Residuals, % 0
0 to 0.15