ASTM B861 GR23 Titanium Tube (Ti-6Al-4V ELI)
Oct 23, 2025
What Is GR23 Titanium
GR23 is a medical-grade material, which is a higher grade material than 316L medical steel in terms of strength-to-weight performance. Implantation in the body does not cause adverse reactions such as infection and allergy, and it enjoys a high degree of recognition in the international market. ELI stands for extra low interstitial: the lower oxygen, nitrogen, and carbon content improves ductility and fracture toughness compared with standard Grade 5.
Common Specifications
| Outer diameter (mm) | Wall thickness (mm) | Length (mm) |
|---|---|---|
| 3-10 | 0.3-2.0 | 1000-2000 |
| 12-22 | 0.8-3.0 | 1000-6000 |
| 25-57 | 1.0-4.0 | 1000-6000 |
| 60-133 | 1.0-10.0 | 1000-6000 |
| 140 and above | 1.0-6.0 | Any length |
Advantages of GR23 Titanium Tube
1. Excellent strength: high strength and good mechanical properties for heavy and high-load environments. 2. Good corrosion resistance: resists seawater, chloride, and acidic media. 3. Excellent biocompatibility: high compatibility with human tissue, suitable for medical devices and implants. 4. Light weight: low density reduces overall weight and improves fuel efficiency in aerospace applications. 5. Good weldability: connectable with other materials through different welding processes.
Frequently Asked Questions
What is GR23 titanium? Ti-6Al-4V ELI, a low-interstitial version of Grade 5 with improved ductility and fracture toughness.
What standard applies to GR23 tube? ASTM B861 for seamless tube; ASTM F136 for medical implant applications.
Why is GR23 used for implants? Its biocompatibility, corrosion resistance, high strength, and toughness make it ideal for medical devices.
What does ELI mean in Ti-6Al-4V ELI? ASTM B861 for seamless tube; ASTM F136 for medical implant applications.
What size range is available for GR23 titanium tube? ASTM B861 for seamless tube; ASTM F136 for medical implant applications.
What are the main advantages of GR23 titanium tube? ASTM B861 for seamless tube; ASTM F136 for medical implant applications.
