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Grade 6 Titanium vs. 7022 Aluminum

Grade 6 titanium belongs to the titanium alloys classification, while 7022 aluminum belongs to the aluminum 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 grade 6 titanium and the bottom bar is 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 11
6.3 to 8.0
Fatigue Strength, MPa 290
140 to 170
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
26
Shear Strength, MPa 530
290 to 320
Tensile Strength: Ultimate (UTS), MPa 890
490 to 540
Tensile Strength: Yield (Proof), MPa 840
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 310
200
Melting Completion (Liquidus), °C 1580
640
Melting Onset (Solidus), °C 1530
480
Specific Heat Capacity, J/kg-K 550
870
Thermal Conductivity, W/m-K 7.8
140
Thermal Expansion, µm/m-K 9.4
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
21
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
65

Otherwise Unclassified Properties

Base Metal Price, % relative 36
10
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 30
8.5
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
1100 to 1500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 55
47 to 51
Strength to Weight: Bending, points 46
47 to 50
Thermal Diffusivity, mm2/s 3.2
54
Thermal Shock Resistance, points 65
21 to 23

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
87.9 to 92.4
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0.1 to 0.3
Copper (Cu), % 0
0.5 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 0
2.6 to 3.7
Manganese (Mn), % 0
0.1 to 0.4
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 0.2
Zinc (Zn), % 0
4.3 to 5.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15