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Grade 6 Titanium vs. 3103 Aluminum

Grade 6 titanium belongs to the titanium alloys classification, while 3103 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is 3103 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 11
1.1 to 28
Fatigue Strength, MPa 290
38 to 83
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
26
Shear Strength, MPa 530
68 to 130
Tensile Strength: Ultimate (UTS), MPa 890
100 to 220
Tensile Strength: Yield (Proof), MPa 840
39 to 200

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 310
190
Melting Completion (Liquidus), °C 1580
660
Melting Onset (Solidus), °C 1530
640
Specific Heat Capacity, J/kg-K 550
900
Thermal Conductivity, W/m-K 7.8
160
Thermal Expansion, µm/m-K 9.4
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.5
2.8
Embodied Carbon, kg CO2/kg material 30
8.2
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
2.4 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
11 to 280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 55
10 to 22
Strength to Weight: Bending, points 46
18 to 30
Thermal Diffusivity, mm2/s 3.2
64
Thermal Shock Resistance, points 65
4.6 to 9.9

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
96.3 to 99.1
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 0
0.9 to 1.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.5
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0 to 0.1
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.15