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Grade C-5 Titanium vs. 2618 Aluminum

Grade C-5 titanium belongs to the titanium alloys classification, while 2618 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 C-5 titanium and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
120
Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 6.7
5.8
Fatigue Strength, MPa 510
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 1000
420
Tensile Strength: Yield (Proof), MPa 940
350

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 340
210
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
550
Specific Heat Capacity, J/kg-K 560
880
Thermal Conductivity, W/m-K 7.1
160
Thermal Expansion, µm/m-K 9.6
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
110

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 4.4
2.9
Embodied Carbon, kg CO2/kg material 38
8.3
Embodied Energy, MJ/kg 610
150
Embodied Water, L/kg 200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
23
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 63
40
Strength to Weight: Bending, points 50
42
Thermal Diffusivity, mm2/s 2.9
62
Thermal Shock Resistance, points 71
19

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
92.4 to 94.9
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
1.9 to 2.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0.9 to 1.3
Magnesium (Mg), % 0
1.3 to 1.8
Nickel (Ni), % 0 to 0.050
0.9 to 1.2
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
0.1 to 0.25
Titanium (Ti), % 87.5 to 91
0.040 to 0.1
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15