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3105 Aluminum vs. Grade 33 Titanium

3105 aluminum belongs to the aluminum alloys classification, while grade 33 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 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 20
23
Fatigue Strength, MPa 39 to 95
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 77 to 140
240
Tensile Strength: Ultimate (UTS), MPa 120 to 240
390
Tensile Strength: Yield (Proof), MPa 46 to 220
350

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 180
320
Melting Completion (Liquidus), °C 660
1660
Melting Onset (Solidus), °C 640
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 170
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 8.2
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
86
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 12 to 24
24
Strength to Weight: Bending, points 20 to 31
26
Thermal Diffusivity, mm2/s 68
8.7
Thermal Shock Resistance, points 5.2 to 11
30

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.2
0.1 to 0.2
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.3
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0.35 to 0.55
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
98.1 to 99.52
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.4