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Grade 27 Titanium vs. 4032 Aluminum

Grade 27 titanium belongs to the titanium alloys classification, while 4032 aluminum belongs to the aluminum 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 grade 27 titanium and the bottom bar is 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 27
6.7
Fatigue Strength, MPa 170
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
28
Shear Strength, MPa 180
260
Tensile Strength: Ultimate (UTS), MPa 270
390
Tensile Strength: Yield (Proof), MPa 230
320

Thermal Properties

Latent Heat of Fusion, J/g 420
570
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1660
570
Melting Onset (Solidus), °C 1610
530
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
140
Thermal Expansion, µm/m-K 8.7
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
34
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 37
10
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 33
7.8
Embodied Energy, MJ/kg 530
140
Embodied Water, L/kg 320
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
25
Resilience: Unit (Modulus of Resilience), kJ/m3 240
700
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 17
41
Strength to Weight: Bending, points 21
45
Thermal Diffusivity, mm2/s 8.8
59
Thermal Shock Resistance, points 21
20

Alloy Composition

Aluminum (Al), % 0
81.1 to 87.2
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
0.5 to 1.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Nickel (Ni), % 0
0.5 to 1.3
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
11 to 13.5
Titanium (Ti), % 99 to 99.92
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15