Subscribe to our Newsletter
Model No: Titanium Grade 3
Titanium Grade 3 / UNS R50550 / Pure Titanium
Titanium Grade 3 (UNS R50550) is an excellent choice for applications requiring higher strength than Grade 2 without sacrificing corrosion resistance or formability. Its ability to withstand extreme environments while maintaining structural integrity makes it a preferred material in aerospace, marine, and chemical industries.
Delivery :
FOB
minimum order :
100 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
Titanium Grade 3 (UNS R50550) is a commercially pure titanium alloy with slightly higher mechanical strength than Grade 2 while maintaining excellent ductility and formability. As part of the unalloyed titanium family, it offers superior corrosion resistance, making it ideal for aerospace, marine, and chemical processing applications where both strength and durability are critical.
Key Properties of Titanium Grade 3
- Higher Strength than Grade 2 – Offers improved tensile and yield strength while retaining good weldability and fabrication characteristics.
- Excellent Corrosion Resistance – Performs well in harsh environments, including saltwater, chlorides, and acidic conditions.
- Good Oxidation Resistance – Suitable for continuous service up to 600°F (316°C) and short-term exposure at higher temperatures.
- Lightweight & Durable – Maintains titanium’s high strength-to-weight ratio, making it ideal for weight-sensitive applications.
- Biocompatibility – Like other CP titanium grades, it is biocompatible and used in medical implants when additional strength is required.
Specification
| Specification | Product Form |
| AMS 4900 | Sheet, Strip and Plate |
| ASME SB-265 | Sheet, Strip and Plate |
| ASME SB-348 | Bar and Billet |
| ASTM 337 | Seamless and Welded Pipe |
| ASTM B265 (Grade 3) | Strip, Sheet, and Plate |
| ASTM B348 (Grade 3) | Bars and Billets |
| ASTM B367 (Grade 3) | Castings |
| ASTM B381 | Forgings |
| ASTM B861 | Seamless Pipe |
| ASTM B862 | Welded Pipe |
| ASTM F67 (Grade 3) | Unalloyed Titanium for Surgical Implants |
| AWS A5.16 (ERTi-3) | Weld Wire |
| ISO 5832-3 | Unalloyed Titanium for Surgical Implants |
| Specification | Product Form |
| AMS 4900 | Sheet, Strip and Plate |
| ASME SB-265 | Sheet, Strip and Plate |
| ASME SB-348 | Bar and Billet |
| ASTM 337 | Seamless and Welded Pipe |
| ASTM B265 (Grade 3) | Strip, Sheet, and Plate |
| ASTM B348 (Grade 3) | Bars and Billets |
| ASTM B367 (Grade 3) | Castings |
Chemical Composition
| Chemistry | Content % |
|---|---|
| Titanium, Ti | 99.1 |
| Oxygen, O | ≤ 0.35 |
| Iron, Fe | ≤ 0.3 |
| Carbon, C | ≤ 0.1 |
| Nitrogen, N | ≤ 0.05 |
| Hydrogen, H | ≤ 0.015 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 4.51 g/cm3 | 0.163 lbs/in3 |
| Melting Point | ≤ 1660 °C | ≤ 3020 °F |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 225 | 225 |
| Hardness, Knoop | 175 | 175 |
| Hardness, Rockwell B | 90 | 90 |
| Hardness, Rockwell C | 16 | 16 |
| Tensile Strength, Ultimate | 440 MPa | 63800 psi |
| Tensile Strength, Yield | 377 – 520 MPa | 54700 – 75400 psi |
| Elongation at Break | 18 % | 18 % |
| Reduction of Area | 35 % | 35 % |
| Modulus of Elasticity | 105 GPa | 15200 ksi |
| Compressive Yield Strength | 450 MPa | 65300 psi |
| Compressive Modulus | 110 GPa | 16000 ksi |
| Ultimate Bearing Strength | 1000 MPa | 145000 psi |
| Bearing Yield Strength | 900 MPa | 131000 psi |
| Poisson’s Ratio | 0.37 | 0.37 |
| Charpy Impact | 30 – 66 J | 22.1 – 48.7 ft-lb |
| Fatigue Strength | 240 MPa | 34800 psi |
| Fatigue Strength | 289 MPa | 41900 psi |
| Fracture Toughness | 79 MPa-m½ | 71.9 ksi-in½ |
| Shear Modulus | 45 GPa | 6530 ksi |
Applications of Titanium Grade 3
Due to its balance of strength and corrosion resistance, Titanium Grade 3 is used in:
- Aerospace & Airframe Components – Structural parts requiring high strength and fatigue resistance.
- Marine Hardware – Propeller shafts, submarine components, and desalination equipment.
- Chemical Processing – Heat exchangers, reactors, and piping systems handling corrosive media.
- Medical Devices – Surgical instruments and implants where higher strength is needed.
- Industrial Applications – Valves, pumps, and fasteners in aggressive environments.
Fabrication & Welding
Titanium Grade 3 can be machined, formed, and welded using standard titanium techniques. Key considerations include:
- Machining: Requires sharp tools, low speeds, and ample cooling to prevent work hardening.
- Welding: Performs well with GTAW (TIG) and laser welding under inert gas shielding to prevent contamination.
- Forming: Exhibits good cold-forming characteristics but may require annealing for complex shapes.
As a leading titanium supplier, Lrok Group specializes in high-quality Titanium Grade 3 (UNS R50550) for industries requiring exceptional strength & corrosion resistance. Our commercially pure titanium meets ASTM B265, ASTM F67 & international standards, ensuring reliability for aerospace, marine, chemical processing & medical applications.
