What is the difference between Titanium vs Aluminum

Both titanium and aluminum are lightweight, high strength and corrosion resistant materials. But they have different weight to strength ratio and applications. In this article we will discuss the difference between titanium vs aluminum, their advantages, disadvantages and applications.

What is the difference between Titanium and Aluminum

Both aluminum and titanium are light weight materials. Aluminum density is approximately one third of the steel. Whereas titanium density is two-third higher than aluminum. But it is still preferred due to the very high strength to weight ratio. This is the reason titanium is more preferred in the aircraft industry.

Aluminum is a more cost effective solution compared to titanium. Average aluminum cost is 2 USD per kg. Whereas titanium average cost is 20 USD per kg. Both aluminum and titanium have excellent corrosion resistance. Latest Metal 3D printing technologies can be used to 3D print parts in titanium and aluminum.

Titanium vs Aluminum

We will try to understand the difference between titanium and aluminum according to their physical and mechanical properties.

PropertiesTitaniumAluminum
Mechanical Properties
Ultimate Tensile Strength220 MPa310 MPa
Modulus of Elasticity116 GPa68.9 GPa
Shear Modulus43 GPa26 GPa
Physical Properties
Density4.5 g/cm³2.7 g/cm³
Melting Point1650-1670 °C582 - 652 °C
Boiling Point3287 °C-
Thermal Properties
Thermal Conductivity17 W/mK167 W/m-K
Other Properties
Average CostVery High Cost $20 per kgCost effective $2 per kg
Corrosion ResistanceExcellentExcellent
Applications
  • Aerospace Equipments
  • Medical Equipments
  • Jewellery
  • Nuclear Waste Storage
  • Heat Sink
  • Consumer electronics
  • Aerospace Parts
  • Electrical Wires
  • Kitchen Utensils
  • We will keep adding more updates on the difference between titanium vs aluminum. Please add your suggestions, comments or questions on the difference between titanium and aluminum in the comment box. We suggest you also read this article on metal 3D printers.

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