CP-Ti Grade 2 powder
UNS R50400 (EN 3.7035; ISO 5832-2)
- Excellent corrosion resistance in oxidising and reducing environments
- High strength-to-weight ratio and low density
- Outstanding biocompatibility for medical applications
- Good weldability and formability
CP-Ti Grade 2 powder
Commercially Pure Titanium Grade 2 (CP-Ti) is an unalloyed titanium material offering an excellent combination of corrosion resistance, moderate strength, and superior biocompatibility. It is widely used in aerospace, chemical processing, and medical implants. In additive manufacturing, CP-Ti enables lightweight, complex geometries for critical applications. The presence of oxygen in this alloy is required in order to maintain strength.
🏭 Industry Sectors
- Aerospace: Structural components, ducting
- Medical: Implants, surgical instruments
- Chemical Processing: Heat exchangers, piping
- Marine: Corrosion resistant hardware
- Automotive: Lightweight performance parts
Composition
| Element | Weight % |
|---|---|
| Ti | Balance |
| Fe | ≤ 0.3 |
| O | ≤ 0.25 |
| C | ≤ 0.08 |
| N | ≤ 0.03 |
| H | ≤ 0.015 |
Alloy Powder Sizes
| Size Distribution | Typical Uses |
|---|---|
| 10 to 90 µm | Binder jetting |
| 15 to 60 µm | Laser – Powder Bed Fusion (L-PBF) |
| 15 to 106 µm | Electron beam – Powder Bed Fusion (E-PBF) |
| 45 to 180 µm | Direct Energy Deposition (DED) |
Heat Treatment
- Stress Relief: 480–650 °C for 1–2 hours
- Annealing: 650–760 °C for 1–2 hours, air cool
- HIP (optional): Improves density and fatigue resistance
Note: CP-Ti is not hardenable by heat treatment; only stress relief and annealing are used.
Key Materials Properties
| Property Type | Property | Value |
|---|---|---|
| Mechanical | Yield Strength | 275 MPa |
| Mechanical | Ultimate Tensile Strength | 345 – 485 MPa |
| Mechanical | Elongation to break | 20 – 30 % |
| Mechanical | Young’s Modulus | 105 GPa |
| Mechanical | High Cycle Fatigue limit | ~ 280 – 300 MPa |
| Mechanical | Hardness | 160 HB |
| Thermal | Conductivity | 16.4 W/m·K (at 20 °C) |
| Thermal | Expansion Coefficient | 8.6 ×10⁻⁶ /°C |
| Electrical | Resistivity | 5.2 ×10⁻5 Ohm.cm |
| Physical | Corrosion Resistance | Excellent |
Corrosion Resistance
CP-Ti offers outstanding resistance to corrosion in oxidising environments, seawater, and many chemical solutions due to its stable oxide film.
Heat Resistance
Maintains mechanical integrity up to ~315 °C in continuous service. Above this, strength decreases significantly.
Welding
Excellent weldability using GTAW, GMAW, and resistance welding. Inert gas shielding is essential to prevent contamination.
Machining
Machinability is fair; use sharp tools, low cutting speeds, and generous coolant to avoid galling and work hardening.