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A380.0 Aluminum vs. Grade 27 Titanium

A380.0 aluminum belongs to the aluminum alloys classification, while grade 27 titanium belongs to the titanium alloys. There are 30 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 A380.0 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 3.3
27
Fatigue Strength, MPa 140
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 190
180
Tensile Strength: Ultimate (UTS), MPa 290
270
Tensile Strength: Yield (Proof), MPa 160
230

Thermal Properties

Latent Heat of Fusion, J/g 510
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 590
1660
Melting Onset (Solidus), °C 550
1610
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 96
21
Thermal Expansion, µm/m-K 22
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 78
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
37
Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 7.5
33
Embodied Energy, MJ/kg 140
530
Embodied Water, L/kg 1040
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
70
Resilience: Unit (Modulus of Resilience), kJ/m3 180
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
35
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 34
21
Thermal Diffusivity, mm2/s 38
8.8
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 3.0 to 4.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 1.3
0 to 0.2
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 7.5 to 9.5
0
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
99 to 99.92
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0
0 to 0.4