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Grade C-5 Titanium vs. 238.0 Aluminum

Grade C-5 titanium belongs to the titanium alloys classification, while 238.0 aluminum belongs to the aluminum alloys. There are 29 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 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
76
Elongation at Break, % 6.7
1.5
Fatigue Strength, MPa 510
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
28
Tensile Strength: Ultimate (UTS), MPa 1000
210
Tensile Strength: Yield (Proof), MPa 940
170

Thermal Properties

Latent Heat of Fusion, J/g 410
430
Maximum Temperature: Mechanical, °C 340
170
Melting Completion (Liquidus), °C 1610
600
Melting Onset (Solidus), °C 1560
510
Specific Heat Capacity, J/kg-K 560
840
Thermal Conductivity, W/m-K 7.1
100
Thermal Expansion, µm/m-K 9.6
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
67

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.4
3.4
Embodied Carbon, kg CO2/kg material 38
7.4
Embodied Energy, MJ/kg 610
140
Embodied Water, L/kg 200
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
180
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
42
Strength to Weight: Axial, points 63
17
Strength to Weight: Bending, points 50
23
Thermal Diffusivity, mm2/s 2.9
37
Thermal Shock Resistance, points 71
9.1

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
81.9 to 84.9
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
9.5 to 10.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
1.0 to 1.5
Magnesium (Mg), % 0
0 to 0.25
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
3.6 to 4.4
Titanium (Ti), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
1.0 to 1.5
Residuals, % 0 to 0.4
0