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2011A Aluminum vs. Grade 27 Titanium

2011A 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 (1, in this case) are not shown.

For each property being compared, the top bar is 2011A aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 6.8 to 16
27
Fatigue Strength, MPa 75 to 100
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 190 to 250
180
Tensile Strength: Ultimate (UTS), MPa 310 to 410
270
Tensile Strength: Yield (Proof), MPa 140 to 310
230

Thermal Properties

Latent Heat of Fusion, J/g 390
420
Maximum Temperature: Mechanical, °C 190
320
Melting Completion (Liquidus), °C 660
1660
Melting Onset (Solidus), °C 550
1610
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 96
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
37
Density, g/cm3 3.1
4.5
Embodied Carbon, kg CO2/kg material 7.9
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
70
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
35
Strength to Weight: Axial, points 28 to 37
17
Strength to Weight: Bending, points 33 to 40
21
Thermal Diffusivity, mm2/s 49
8.8
Thermal Shock Resistance, points 14 to 18
21

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
0
Bismuth (Bi), % 0.2 to 0.6
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 4.5 to 6.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0.2 to 0.6
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 0.4
0
Titanium (Ti), % 0
99 to 99.92
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.4