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3105 Aluminum vs. Grade C-5 Titanium

3105 aluminum belongs to the aluminum alloys classification, while grade C-5 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 3105 aluminum and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 67
310
Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 20
6.7
Fatigue Strength, MPa 39 to 95
510
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 120 to 240
1000
Tensile Strength: Yield (Proof), MPa 46 to 220
940

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 180
340
Melting Completion (Liquidus), °C 660
1610
Melting Onset (Solidus), °C 640
1560
Specific Heat Capacity, J/kg-K 900
560
Thermal Conductivity, W/m-K 170
7.1
Thermal Expansion, µm/m-K 24
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.8
4.4
Embodied Carbon, kg CO2/kg material 8.2
38
Embodied Energy, MJ/kg 150
610
Embodied Water, L/kg 1180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
66
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
4200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 12 to 24
63
Strength to Weight: Bending, points 20 to 31
50
Thermal Diffusivity, mm2/s 68
2.9
Thermal Shock Resistance, points 5.2 to 11
71

Alloy Composition

Aluminum (Al), % 96 to 99.5
5.5 to 6.8
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.4
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.4