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771.0 Aluminum vs. Grade 5 Titanium

771.0 aluminum belongs to the aluminum alloys classification, while grade 5 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 771.0 aluminum and the bottom bar is grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 1.7 to 6.5
8.6 to 11
Fatigue Strength, MPa 92 to 180
530 to 630
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 250 to 370
1000 to 1190
Tensile Strength: Yield (Proof), MPa 210 to 350
910 to 1110

Thermal Properties

Latent Heat of Fusion, J/g 380
410
Maximum Temperature: Mechanical, °C 180
330
Melting Completion (Liquidus), °C 630
1610
Melting Onset (Solidus), °C 620
1650
Specific Heat Capacity, J/kg-K 870
560
Thermal Conductivity, W/m-K 140 to 150
6.8
Thermal Expansion, µm/m-K 24
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 82
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 3.0
4.4
Embodied Carbon, kg CO2/kg material 8.0
38
Embodied Energy, MJ/kg 150
610
Embodied Water, L/kg 1130
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4 to 20
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 900
3980 to 5880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 23 to 35
62 to 75
Strength to Weight: Bending, points 29 to 39
50 to 56
Thermal Diffusivity, mm2/s 54 to 58
2.7
Thermal Shock Resistance, points 11 to 16
76 to 91

Alloy Composition

Aluminum (Al), % 90.5 to 92.5
5.5 to 6.8
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0.060 to 0.2
0
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.15
0 to 0.4
Magnesium (Mg), % 0.8 to 1.0
0
Manganese (Mn), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.15
0
Titanium (Ti), % 0.1 to 0.2
87.4 to 91
Vanadium (V), % 0
3.5 to 4.5
Yttrium (Y), % 0
0 to 0.0050
Zinc (Zn), % 6.5 to 7.5
0
Residuals, % 0
0 to 0.4