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5021 Aluminum vs. Grade 9 Titanium

5021 aluminum belongs to the aluminum alloys classification, while grade 9 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 5021 aluminum and the bottom bar is grade 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 1.1 to 3.4
11 to 17
Fatigue Strength, MPa 85 to 110
330 to 480
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Shear Strength, MPa 170
430 to 580
Tensile Strength: Ultimate (UTS), MPa 300 to 310
700 to 960
Tensile Strength: Yield (Proof), MPa 240 to 270
540 to 830

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 180
330
Melting Completion (Liquidus), °C 640
1640
Melting Onset (Solidus), °C 590
1590
Specific Heat Capacity, J/kg-K 900
550
Thermal Conductivity, W/m-K 140
8.1
Thermal Expansion, µm/m-K 23
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 8.6
36
Embodied Energy, MJ/kg 150
580
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
1380 to 3220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 30 to 32
43 to 60
Strength to Weight: Bending, points 37
39 to 48
Thermal Diffusivity, mm2/s 57
3.3
Thermal Shock Resistance, points 13 to 14
52 to 71

Alloy Composition


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Aluminum (Al), % 95.2 to 97.7
2.5 to 3.5
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.25
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0.1 to 0.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0
92.6 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0 to 0.4