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7050 Aluminum vs. Grade 29 Titanium

7050 aluminum belongs to the aluminum alloys classification, while grade 29 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 7050 aluminum and the bottom bar is grade 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 2.2 to 12
6.8 to 11
Fatigue Strength, MPa 130 to 210
460 to 510
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
40
Shear Strength, MPa 280 to 330
550 to 560
Tensile Strength: Ultimate (UTS), MPa 490 to 570
930 to 940
Tensile Strength: Yield (Proof), MPa 390 to 500
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Maximum Temperature: Mechanical, °C 190
340
Melting Completion (Liquidus), °C 630
1610
Melting Onset (Solidus), °C 490
1560
Specific Heat Capacity, J/kg-K 860
560
Thermal Conductivity, W/m-K 140
7.3
Thermal Expansion, µm/m-K 24
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 3.1
4.5
Embodied Carbon, kg CO2/kg material 8.2
39
Embodied Energy, MJ/kg 150
640
Embodied Water, L/kg 1120
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 55
62 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1110 to 1760
3420 to 3540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
35
Strength to Weight: Axial, points 45 to 51
58 to 59
Strength to Weight: Bending, points 45 to 50
47 to 48
Thermal Diffusivity, mm2/s 54
2.9
Thermal Shock Resistance, points 21 to 25
68 to 69

Alloy Composition

Aluminum (Al), % 87.3 to 92.1
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 2.0 to 2.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.15
0 to 0.25
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.12
0
Titanium (Ti), % 0 to 0.060
88 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.080 to 0.15
0
Residuals, % 0
0 to 0.4