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Grade 5 Titanium vs. 2017A Aluminum

Grade 5 titanium belongs to the titanium alloys classification, while 2017A 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 5 titanium and the bottom bar is 2017A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 8.6 to 11
2.2 to 14
Fatigue Strength, MPa 530 to 630
92 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Shear Strength, MPa 600 to 710
120 to 270
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
200 to 460
Tensile Strength: Yield (Proof), MPa 910 to 1110
110 to 290

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 330
220
Melting Completion (Liquidus), °C 1610
650
Melting Onset (Solidus), °C 1650
510
Specific Heat Capacity, J/kg-K 560
880
Thermal Conductivity, W/m-K 6.8
150
Thermal Expansion, µm/m-K 8.9
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
100

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 4.4
3.0
Embodied Carbon, kg CO2/kg material 38
8.2
Embodied Energy, MJ/kg 610
150
Embodied Water, L/kg 200
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
6.7 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 3980 to 5880
90 to 570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 62 to 75
19 to 42
Strength to Weight: Bending, points 50 to 56
26 to 44
Thermal Diffusivity, mm2/s 2.7
56
Thermal Shock Resistance, points 76 to 91
8.9 to 20

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
91.3 to 95.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
3.5 to 4.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.7
Magnesium (Mg), % 0
0.4 to 1.0
Manganese (Mn), % 0
0.4 to 1.0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0.2 to 0.8
Titanium (Ti), % 87.4 to 91
0 to 0.25
Vanadium (V), % 3.5 to 4.5
0
Yttrium (Y), % 0 to 0.0050
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants