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Grade 2 Titanium vs. 3102 Aluminum

Grade 2 titanium belongs to the titanium alloys classification, while 3102 aluminum belongs to the aluminum 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 grade 2 titanium and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 23
23 to 28
Fatigue Strength, MPa 250
31 to 34
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 38
26
Shear Strength, MPa 270
58 to 65
Tensile Strength: Ultimate (UTS), MPa 420
92 to 100
Tensile Strength: Yield (Proof), MPa 360
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
640
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 22
230
Thermal Expansion, µm/m-K 9.0
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
56
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
190

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.0
Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 31
8.2
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 600
5.8 to 8.3
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 26
9.4 to 10
Strength to Weight: Bending, points 28
17 to 18
Thermal Diffusivity, mm2/s 8.9
92
Thermal Shock Resistance, points 32
4.1 to 4.4

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.95
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Manganese (Mn), % 0
0.050 to 0.4
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 98.9 to 100
0 to 0.1
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15