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Grade 27 Titanium vs. A535.0 Aluminum

Grade 27 titanium belongs to the titanium alloys classification, while A535.0 aluminum belongs to the aluminum 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 grade 27 titanium and the bottom bar is A535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
67
Elongation at Break, % 27
9.0
Fatigue Strength, MPa 170
95
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
25
Tensile Strength: Ultimate (UTS), MPa 270
250
Tensile Strength: Yield (Proof), MPa 230
120

Thermal Properties

Latent Heat of Fusion, J/g 420
390
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
620
Melting Onset (Solidus), °C 1610
550
Specific Heat Capacity, J/kg-K 540
910
Thermal Conductivity, W/m-K 21
100
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
23
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
79

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 33
9.3
Embodied Energy, MJ/kg 530
160
Embodied Water, L/kg 320
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
19
Resilience: Unit (Modulus of Resilience), kJ/m3 240
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
51
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 21
33
Thermal Diffusivity, mm2/s 8.8
42
Thermal Shock Resistance, points 21
11

Alloy Composition

Aluminum (Al), % 0
91.4 to 93.4
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.2
Magnesium (Mg), % 0
6.5 to 7.5
Manganese (Mn), % 0
0.1 to 0.25
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 0.2
Titanium (Ti), % 99 to 99.92
0 to 0.25
Residuals, % 0
0 to 0.15