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A201.0 Aluminum vs. Grade 27 Titanium

A201.0 aluminum belongs to the aluminum alloys classification, while grade 27 titanium belongs to the titanium alloys. There are 29 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 A201.0 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 4.7
27
Fatigue Strength, MPa 97
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 480
270
Tensile Strength: Yield (Proof), MPa 420
230

Thermal Properties

Latent Heat of Fusion, J/g 390
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 650
1660
Melting Onset (Solidus), °C 570
1610
Specific Heat Capacity, J/kg-K 880
540
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 90
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
37
Density, g/cm3 3.0
4.5
Embodied Carbon, kg CO2/kg material 8.1
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
70
Resilience: Unit (Modulus of Resilience), kJ/m3 1250
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 44
17
Strength to Weight: Bending, points 45
21
Thermal Diffusivity, mm2/s 46
8.8
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 93.7 to 95.5
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 4.0 to 5.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.1
0 to 0.2
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0.2 to 0.4
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), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.35
99 to 99.92
Residuals, % 0
0 to 0.4