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3105 Aluminum vs. Grade 19 Titanium

3105 aluminum belongs to the aluminum alloys classification, while grade 19 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 3105 aluminum and the bottom bar is grade 19 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 1.1 to 20
5.6 to 17
Fatigue Strength, MPa 39 to 95
550 to 620
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
47
Shear Strength, MPa 77 to 140
550 to 750
Tensile Strength: Ultimate (UTS), MPa 120 to 240
890 to 1300
Tensile Strength: Yield (Proof), MPa 46 to 220
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
370
Melting Completion (Liquidus), °C 660
1660
Melting Onset (Solidus), °C 640
1600
Specific Heat Capacity, J/kg-K 900
520
Thermal Conductivity, W/m-K 170
6.2
Thermal Expansion, µm/m-K 24
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
45
Density, g/cm3 2.8
5.0
Embodied Carbon, kg CO2/kg material 8.2
47
Embodied Energy, MJ/kg 150
760
Embodied Water, L/kg 1180
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
3040 to 5530
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
33
Strength to Weight: Axial, points 12 to 24
49 to 72
Strength to Weight: Bending, points 20 to 31
41 to 53
Thermal Diffusivity, mm2/s 68
2.4
Thermal Shock Resistance, points 5.2 to 11
57 to 83

Alloy Composition

Aluminum (Al), % 96 to 99.5
3.0 to 4.0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.2
5.5 to 6.5
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.020
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
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
71.1 to 77
Vanadium (V), % 0
7.5 to 8.5
Zinc (Zn), % 0 to 0.4
0
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4

Comparable Variants