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Grade C-6 Titanium vs. 4004 Aluminum

Grade C-6 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-6 titanium and the bottom bar is 4004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
71
Elongation at Break, % 9.0
2.4
Fatigue Strength, MPa 460
42
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 890
110
Tensile Strength: Yield (Proof), MPa 830
60

Thermal Properties

Latent Heat of Fusion, J/g 410
540
Maximum Temperature: Mechanical, °C 310
160
Melting Completion (Liquidus), °C 1580
600
Melting Onset (Solidus), °C 1530
560
Specific Heat Capacity, J/kg-K 550
910
Thermal Conductivity, W/m-K 7.8
130
Thermal Expansion, µm/m-K 9.8
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 30
8.0
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 3300
25
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
54
Strength to Weight: Axial, points 55
12
Strength to Weight: Bending, points 46
20
Thermal Diffusivity, mm2/s 3.2
58
Thermal Shock Resistance, points 63
5.1

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
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 0.5
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 0.2
0
Silicon (Si), % 0
9.0 to 10.5
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15