TITANIUM


Titanium is a lightweight and strong metal, known for its excellent corrosion resistance and extremely favorable strength-to-weight ratio. Thanks to these properties, titanium is widely used in industries such as aerospace, medical, and chemical.


Properties of Titanium


Mechanical and Physical Properties


Property Typical Value
Density 4.51 g/cm³
Melting Point 1668 °C
Tensile Strength 434 MPa (pure Ti)
Elastic Modulus 116 GPa
Thermal Conductivity 21.9 W/m·K
Elongation 30%

Chemical Composition


Commercially pure titanium contains at least 99% titanium, with small amounts of oxygen, nitrogen, carbon, and iron as impurities. Titanium alloys may include elements such as aluminum, vanadium, and molybdenum to further enhance mechanical properties and corrosion resistance.


Graph: Tensile Strength vs Density


The graph shows the relationship between tensile strength and density of titanium compared to other lightweight metals, such as aluminum and magnesium.


A graph with a yellow line going up and down


Microstructure Images


The following image shows the typical microstructure of pure titanium:


Classification of Titanium


Titanium and its alloys are classified into four main grades based on purity and alloying elements:


  • Commercially Pure Titanium (Grades 1-4)
  • Titanium-Aluminum-Vanadium Alloys (Grade 5)
  • Titanium-Palladium Alloys (Grade 7)
  • Titanium-Zirconium Alloys (Grade 9)


Properties of Different Titanium Grades


Grade Composition Tensile Strength (MPa) Ductility Typical Applications
1 Pure Ti 240-370 High Chemical, medical
5 Ti-6Al-4V 895-930 Moderate Aerospace, biomedical
7 Ti-0.2Pd 240-370 High Chemical, marine
9 Ti-3Al-2.5V 620-690 High Sports, automotive

Applications of Titanium


Titanium is used in various industries, including:


  • Aerospace: Used for aircraft structural components, engines, and landing gear due to its high specific strength and corrosion resistance.
  • Medical: Used for orthopedic implants, surgical instruments, and medical devices due to its biocompatibility.
  • Chemical Industry: Used for heat exchangers, tanks, and piping in corrosive environments.
  • Sports Industry: Used for bicycles, sports equipment, and high-performance vehicles due to its lightness and strength.


Titanium Treatments and Processing


Titanium can undergo various treatments and processing methods to enhance its properties and adapt it to specific applications. These include:


  • Heat Treatments: Used to improve mechanical strength and toughness.
  • Cold Working: Used to increase strength and reduce ductility.
  • Protective Coatings: Applied to further enhance corrosion resistance in extreme environments.


Conclusion


Titanium is an excellent choice for companies seeking lightweight, strong, and highly corrosion-resistant materials. Its versatility makes it ideal for a wide range of industrial and commercial applications. Investing in high-quality titanium can bring significant economic advantages, improving product durability and reducing maintenance costs. Choosing experienced and reliable suppliers is crucial to ensuring the procurement of materials that meet stringent quality and performance standards.


Autore: Alice Libardi 31 luglio 2025
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