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Grade 15 Titanium vs. 2219 Aluminum

Grade 15 titanium belongs to the titanium alloys classification, while 2219 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 15 titanium and the bottom bar is 2219 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 20
2.2 to 20
Fatigue Strength, MPa 290
90 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
27
Shear Strength, MPa 340
110 to 280
Tensile Strength: Ultimate (UTS), MPa 540
180 to 480
Tensile Strength: Yield (Proof), MPa 430
88 to 390

Thermal Properties

Latent Heat of Fusion, J/g 420
390
Maximum Temperature: Mechanical, °C 320
230
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
540
Specific Heat Capacity, J/kg-K 540
870
Thermal Conductivity, W/m-K 21
110 to 170
Thermal Expansion, µm/m-K 8.7
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
28 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
81 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 37
11
Density, g/cm3 4.5
3.1
Embodied Carbon, kg CO2/kg material 32
8.2
Embodied Energy, MJ/kg 520
150
Embodied Water, L/kg 210
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
9.6 to 60
Resilience: Unit (Modulus of Resilience), kJ/m3 870
54 to 1060
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
44
Strength to Weight: Axial, points 33
16 to 43
Strength to Weight: Bending, points 33
23 to 44
Thermal Diffusivity, mm2/s 8.4
42 to 63
Thermal Shock Resistance, points 41
8.2 to 22

Alloy Composition

Aluminum (Al), % 0
91.5 to 93.8
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
5.8 to 6.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.3
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0
0.2 to 0.4
Nickel (Ni), % 0.4 to 0.6
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.2
Titanium (Ti), % 98.2 to 99.56
0.020 to 0.1
Vanadium (V), % 0
0.050 to 0.15
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.15