What is the purity of Grade 2 titanium?
Dec 09, 2025
What is the purity of Grade 2 titanium?
Grade 2 Titanium is at least 99.2% pure titanium by weight, making it the "workhorse" grade of commercially pure (CP) titanium. Its exceptional properties stem from this high purity, balanced with small, controlled amounts of interstitial elements that optimize its mechanical performance.
Chemical Composition
| Element | Maximum Allowable Weight % | Primary Effect |
|---|---|---|
| Nitrogen (N) | 0.03% | Major strengthener. Increases strength and hardness significantly. |
| Carbon (C) | 0.08% | Moderate strengthener. |
| Hydrogen (H) | 0.015% | Detrimental in excess. Can cause embrittlement. |
| Iron (Fe) | 0.30% | Major strengthener. The most common impurity, increases strength. |
| Oxygen (O) | 0.25% | THE MOST CRITICAL STRENGTHENER. Directly controls the grade's strength and hardness. |
| Other Elements (Each) | 0.1% | Includes residuals like silicon, etc. |
| Other Elements (Total) | 0.4% | Sum of all unspecified residuals. |
| Titanium (Ti) | Balance (≥ 99.2%) | The remaining pure titanium base. |
physical composition
| Tensile strength [N/mm2] |
min. 345 |
| Yield strength 0.2% [N/mm2] |
min. 275 |
| Density [g/cm3] |
4,51 |
| Elongation [g/cm3] |
20 |
| Specific heat [J/g °C] |
520 |
| Elastic modulus [kN/mm2] |
105 |
| Hardness [HV] |
160 – 200 |
Thermal treatment
| Soft annealing | 600°C – 700°C |
| Stress relief heat treatment | 450°C – 600°C |
Difference Between Grade 23 and Grade 2 Titanium
Applications of Grade 23 and Grade 2 Titanium
Grade 2 titanium is widely used in various industries, including aerospace, marine, and medical. It is used to manufacture aircraft parts, heat exchangers, prosthetic devices, and surgical implants. Grade 23 titanium is more commonly used in medical and dental implants and the aerospace and automotive industries. It is used to manufacture dental implants, bone screws, hip and knee replacements, engine parts, and structural components for aircraft.
Benefits of Grade 23 and Grade 2 Titanium
Grade 2 titanium offers several benefits, including excellent strength-to-weight ratio, corrosion resistance, and biocompatibility. These properties make it an ideal material for use in medical implants since it does not react with the human body and does not cause any allergic reactions. It is also lightweight, making it easy to handle and transport. Grade 23 titanium, on the other hand, offers higher strength and toughness, making it ideal for applications that require superior durability and wear resistance. It also has high corrosion resistance and biocompatibility, making it suitable for orthopaedic and dental implants.
Manufacturing of Grade 23 and Grade 2 Titanium
The manufacturing process of grade 23 and grade 2 titanium involves various processes, including forging, rolling, extrusion, and welding. Grade 2 titanium is typically hot-rolled or cold-rolled to form different shapes and sizes, while grade 23 titanium is forged and heat-treated to enhance its properties. Welding can also be used to join titanium parts, but it should be done carefully to avoid weakening the material's properties.
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
