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Grade 33 Titanium vs. 7116 Aluminum

Grade 33 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 33 titanium and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 23
7.8
Fatigue Strength, MPa 250
160
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
26
Shear Strength, MPa 240
220
Tensile Strength: Ultimate (UTS), MPa 390
370
Tensile Strength: Yield (Proof), MPa 350
330

Thermal Properties

Latent Heat of Fusion, J/g 420
380
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
520
Specific Heat Capacity, J/kg-K 540
880
Thermal Conductivity, W/m-K 21
150
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
46
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.5
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 33
8.2
Embodied Energy, MJ/kg 530
150
Embodied Water, L/kg 200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
28
Resilience: Unit (Modulus of Resilience), kJ/m3 590
790
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 24
35
Strength to Weight: Bending, points 26
39
Thermal Diffusivity, mm2/s 8.7
58
Thermal Shock Resistance, points 30
16

Alloy Composition

Aluminum (Al), % 0
91.5 to 94.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0.1 to 0.2
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 0.3
0 to 0.3
Magnesium (Mg), % 0
0.8 to 1.4
Manganese (Mn), % 0
0 to 0.050
Nickel (Ni), % 0.35 to 0.55
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.010 to 0.020
0
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
0 to 0.15
Titanium (Ti), % 98.1 to 99.52
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