Grade 2 vs Grade 5 Titanium (Ti-6Al-4V)
Dec 10, 2025
Grade 2 titanium and Grade 5 titanium are widely used in industries such as aerospace, medical, automotive, and marine. However, due to differences in their physical properties and chemical compositions, they are suited for different applications. Is Grade 2 titanium better than Grade 5?
What Is Commercially Pure Titanium (Grade 2)?
Grade 2 titanium alloy is a commercially pure titanium material that consists primarily of high-purity titanium, with small amounts of other elements such as iron, carbon, oxygen, nitrogen, and hydrogen. It is known for its excellent corrosion resistance and weldability, making it an ideal choice for a variety of industrial applications.
Key properties of Grade 2 titanium:
Composition: 95% pure titanium
Tensile strength: 345 MPa
Yield strength: 275 MPa
Density: 4.51 g/cm³
Corrosion resistance: Exceptional resistance to corrosion in marine environments
Weldability: Easily weldable and formable, suitable for processing and manufacturing
Typical applications:
Power generation
Petrochemical processing
Desalination
Piping systems
Electroplating
What Is Ti-6Al-4V (Grade 5 Titanium Alloy)?
Grade 5 titanium, also known as Ti-6Al-4V, is an alloy made of 90% titanium, 6% aluminum, and 4% vanadium. It is the most widely used titanium alloy due to its high strength, excellent toughness, and good formability. Grade 5 titanium can be processed into various shapes and specifications, including titanium bars, plates, and tubes.
Key properties of Grade 5 titanium:
Composition: 90% titanium, 6% aluminum, 4% vanadium
Tensile strength: 895 MPa
Yield strength: 828 MPa
Density: 4.43 g/cm³
Corrosion resistance: Excellent, though slightly lower than Grade 2 due to alloying elements
Weldable with proper techniques
Typical applications:
Aircraft structural components, fasteners, and engine parts
High-performance automotive components
Medical implants, prosthetics, and orthotic devices
Marine and offshore drilling equipment
Sports equipment, such as golf clubs and bicycles
Grade 2 vs Grade 5: Key Performance Differences
Strength and Durability
Grade 5 titanium significantly outperforms Grade 2 in terms of mechanical strength and tensile properties. With a tensile strength of up to 895 MPa, it is suitable for high-stress applications such as aerospace, automotive, and medical implants. Grade 2 titanium, with a tensile strength of 345 MPa, is ideal for low to medium-stress applications.
If you require a material that can withstand higher pressure and stress without cracking, Grade 5 titanium is the better choice.
Corrosion Resistance
Grade 2 titanium excels in corrosion resistance, especially in marine and chemical processing environments. Although Grade 5 titanium also has excellent corrosion resistance, the alloying elements (aluminum and vanadium) slightly reduce its corrosion performance.
If your project involves extreme corrosive environments, Grade 2 titanium might be a better option. However, for most other applications, Grade 5 titanium's corrosion resistance is more than sufficient.
Workability & Weldability
Grade 2 titanium is more ductile and easier to process and weld, making it ideal for applications requiring complex shapes and welding. In comparison, Grade 5 titanium, though weldable, requires more specialized equipment and techniques due to its higher strength.
Cost Considerations
Grade 5 titanium is typically more expensive than Grade 2 titanium due to differences in composition and manufacturing processes. When choosing between the two, cost can be a significant factor, especially if you are working within a strict budget. However, considering its superior performance, Grade 5 titanium often provides better value for money.
Which One is Right for Your Project?
Choosing between Grade 2 titanium(CP Ti) and Grade 5 titanium ultimately depends on your specific application needs. If you require a titanium alloy that offers excellent corrosion resistance and is easy to process, with moderate strength requirements, Grade 2 titanium is an excellent choice. It is commonly used in marine and chemical processing environments.
On the other hand, if you need a titanium alloy with high strength, outstanding durability, and performance under high-stress conditions, Grade 5 titanium is the better option. It is widely used in aerospace, automotive, and medical applications.
why choose us
We provide a comprehensive range of titanium materials and fabricated parts, including:
Titanium Tubes & Pipe: Seamless and welded tubing in commercial and aerospace grades (Gr1, Gr2, Gr5, Gr7, Gr9, Gr12), suitable for heat exchangers, condenser tubes, and piping systems.
Titanium Bars & Rods: Round bars, hex bars, and square bars in hot-rolled, forged, and cold-drawn conditions, available in various diameters and lengths.
Titanium Plate & Sheet: Plates, sheets, and strips in standard and custom dimensions, ideal for pressure vessels, chemical processing, and marine applications.
Titanium Wire & Foil: Fine wire for welding, fasteners, and medical applications, alongside ultra-thin foil for specialized industrial uses.
Precision Titanium CNC Machining Parts: Custom-engineered components, fittings, flanges, fasteners, and intricate parts machined from titanium billets, bars, or plates with tight tolerances.
For quotes, technical specifications, or to discuss your project requirements for titanium tubes, bars, plates, sheets, wire, foil, or custom CNC machined components, please contact our team.
Email us at: info@gneemetal.com
