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Grade 27 Titanium vs. 383.0 Aluminum

Grade 27 titanium belongs to the titanium alloys classification, while 383.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is 383.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 27
3.5
Fatigue Strength, MPa 170
150
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
28
Tensile Strength: Ultimate (UTS), MPa 270
280
Tensile Strength: Yield (Proof), MPa 230
150

Thermal Properties

Latent Heat of Fusion, J/g 420
540
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
580
Melting Onset (Solidus), °C 1610
540
Specific Heat Capacity, J/kg-K 540
880
Thermal Conductivity, W/m-K 21
96
Thermal Expansion, µm/m-K 8.7
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
23
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
74

Otherwise Unclassified Properties

Base Metal Price, % relative 37
10
Density, g/cm3 4.5
2.8
Embodied Carbon, kg CO2/kg material 33
7.5
Embodied Energy, MJ/kg 530
140
Embodied Water, L/kg 320
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 240
150
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 21
34
Thermal Diffusivity, mm2/s 8.8
39
Thermal Shock Resistance, points 21
13

Alloy Composition

Aluminum (Al), % 0
79.7 to 88.5
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
2.0 to 3.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.3
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
9.5 to 11.5
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 99 to 99.92
0
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5