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Grade 15 Titanium vs. 5383 Aluminum

Grade 15 titanium belongs to the titanium alloys classification, while 5383 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 15 titanium and the bottom bar is 5383 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 20
6.7 to 15
Fatigue Strength, MPa 290
130 to 200
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
26
Shear Strength, MPa 340
190 to 220
Tensile Strength: Ultimate (UTS), MPa 540
310 to 370
Tensile Strength: Yield (Proof), MPa 430
150 to 310

Thermal Properties

Latent Heat of Fusion, J/g 420
390
Maximum Temperature: Mechanical, °C 320
200
Melting Completion (Liquidus), °C 1660
650
Melting Onset (Solidus), °C 1610
540
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
130
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
29
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
97

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 32
9.0
Embodied Energy, MJ/kg 520
160
Embodied Water, L/kg 210
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
23 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 870
170 to 690
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 33
32 to 38
Strength to Weight: Bending, points 33
38 to 42
Thermal Diffusivity, mm2/s 8.4
51
Thermal Shock Resistance, points 41
14 to 16

Alloy Composition

Aluminum (Al), % 0
92 to 95.3
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.25
Magnesium (Mg), % 0
4.0 to 5.2
Manganese (Mn), % 0
0.7 to 1.0
Nickel (Ni), % 0.4 to 0.6
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.25
Titanium (Ti), % 98.2 to 99.56
0 to 0.15
Zinc (Zn), % 0
0 to 0.4
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15