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Grade C-5 Titanium vs. 4004 Aluminum

Grade C-5 titanium belongs to the titanium alloys classification, while 4004 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade C-5 titanium and the bottom bar is 4004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 6.7
2.4
Fatigue Strength, MPa 510
42
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 1000
110
Tensile Strength: Yield (Proof), MPa 940
60

Thermal Properties

Latent Heat of Fusion, J/g 410
540
Maximum Temperature: Mechanical, °C 340
160
Melting Completion (Liquidus), °C 1610
600
Melting Onset (Solidus), °C 1560
560
Specific Heat Capacity, J/kg-K 560
910
Thermal Conductivity, W/m-K 7.1
130
Thermal Expansion, µm/m-K 9.6
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.4
2.6
Embodied Carbon, kg CO2/kg material 38
8.0
Embodied Energy, MJ/kg 610
150
Embodied Water, L/kg 200
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
25
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
54
Strength to Weight: Axial, points 63
12
Strength to Weight: Bending, points 50
20
Thermal Diffusivity, mm2/s 2.9
58
Thermal Shock Resistance, points 71
5.1

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
86 to 90
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.8
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
9.0 to 10.5
Titanium (Ti), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15