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Grade 12 Titanium vs. 2014 Aluminum

Grade 12 titanium belongs to the titanium alloys classification, while 2014 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 12 titanium and the bottom bar is 2014 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 21
1.5 to 16
Fatigue Strength, MPa 280
90 to 160
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Shear Strength, MPa 330
130 to 290
Tensile Strength: Ultimate (UTS), MPa 530
190 to 500
Tensile Strength: Yield (Proof), MPa 410
100 to 440

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
210
Melting Completion (Liquidus), °C 1660
630
Melting Onset (Solidus), °C 1610
510
Specific Heat Capacity, J/kg-K 540
870
Thermal Conductivity, W/m-K 21
150
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
40
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
120

Otherwise Unclassified Properties

Base Metal Price, % relative 37
11
Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 31
8.1
Embodied Energy, MJ/kg 500
150
Embodied Water, L/kg 110
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.6 to 56
Resilience: Unit (Modulus of Resilience), kJ/m3 770
76 to 1330
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 32
18 to 46
Strength to Weight: Bending, points 32
25 to 46
Thermal Diffusivity, mm2/s 8.5
58
Thermal Shock Resistance, points 37
8.4 to 22

Alloy Composition

Aluminum (Al), % 0
90.4 to 95
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
3.9 to 5.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0
0.4 to 1.2
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.6 to 0.9
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
0.5 to 1.2
Titanium (Ti), % 97.6 to 99.2
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15