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380.0 Aluminum vs. Grade 27 Titanium

380.0 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 (2, in this case) are not shown.

For each property being compared, the top bar is 380.0 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
110
Elongation at Break, % 3.0
27
Fatigue Strength, MPa 140
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
41
Shear Strength, MPa 190
180
Tensile Strength: Ultimate (UTS), MPa 320
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 540
1610
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 100
21
Thermal Expansion, µm/m-K 22
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 83
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
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 8.0
70
Resilience: Unit (Modulus of Resilience), kJ/m3 170
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
35
Strength to Weight: Axial, points 31
17
Strength to Weight: Bending, points 36
21
Thermal Diffusivity, mm2/s 40
8.8
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 79.6 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 2.0
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