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Grade 33 Titanium vs. EN AC-44400 Aluminum

Grade 33 titanium belongs to the titanium alloys classification, while EN AC-44400 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 33 titanium and the bottom bar is EN AC-44400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 23
4.1
Fatigue Strength, MPa 250
79
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 390
210
Tensile Strength: Yield (Proof), MPa 350
110

Thermal Properties

Latent Heat of Fusion, J/g 420
540
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
600
Melting Onset (Solidus), °C 1610
590
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
140
Thermal Expansion, µm/m-K 8.7
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
33
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 33
7.8
Embodied Energy, MJ/kg 530
150
Embodied Water, L/kg 200
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
7.3
Resilience: Unit (Modulus of Resilience), kJ/m3 590
85
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
54
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 26
31
Thermal Diffusivity, mm2/s 8.7
60
Thermal Shock Resistance, points 30
9.8

Alloy Composition

Aluminum (Al), % 0
87.1 to 92
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0.1 to 0.2
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.65
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0.35 to 0.55
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.010 to 0.020
0
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
8.0 to 11
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 98.1 to 99.52
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15