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Grade 27 Titanium vs. 711.0 Aluminum

Grade 27 titanium belongs to the titanium alloys classification, while 711.0 aluminum belongs to the aluminum alloys. There are 29 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 27 titanium and the bottom bar is 711.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 27
7.8
Fatigue Strength, MPa 170
100
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 270
220
Tensile Strength: Yield (Proof), MPa 230
140

Thermal Properties

Latent Heat of Fusion, J/g 420
380
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
610
Specific Heat Capacity, J/kg-K 540
860
Thermal Conductivity, W/m-K 21
160
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
40
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 33
7.9
Embodied Energy, MJ/kg 530
150
Embodied Water, L/kg 320
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
15
Resilience: Unit (Modulus of Resilience), kJ/m3 240
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
45
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 21
26
Thermal Diffusivity, mm2/s 8.8
61
Thermal Shock Resistance, points 21
9.3

Alloy Composition

Aluminum (Al), % 0
89.8 to 92.7
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.35 to 0.65
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0.7 to 1.4
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.3
Titanium (Ti), % 99 to 99.92
0 to 0.2
Zinc (Zn), % 0
6.0 to 7.0
Residuals, % 0
0 to 0.15