Titanium Grade 23 (Ti-6Al-4V ELI)
Titanium Grade 23 (ELI - Extra Low Interstitial) is the medical-grade version of Ti-6Al-4V with reduced oxygen, nitrogen, and iron content. This results in superior fracture toughness and biocompatibility, making it the preferred material for surgical implants.
Machinability
20/100
Tolerance
±0.02 mm
Category
Titanium Alloys
Material Properties
| Property | Value |
|---|---|
| Tensile Strength | 860 MPa (125 ksi) |
| Yield Strength | 795 MPa (115 ksi) |
| Hardness | 320 HV |
| Density | 4.43 g/cm³ |
| Machinability Rating | 20/100 |
| Thermal Conductivity | 6.7 W/m·K |
| Melting Point | 1,604–1,660 °C |
| Tolerance | ±0.02 mm |
Common Grades
Ti-6Al-4V ELIindustry-standard material specaerospace material spec
Advantages
- Superior biocompatibility
- Excellent fracture toughness
- suitable for intended use
- Corrosion immune in body fluids
Limitations
- Very expensive
- Extremely difficult to machine
- Limited suppliers
- Requires clean-room handling for implants
Common Applications
Orthopedic implants
Dental implants
Spinal fixation
Surgical instruments
Biomedical devices
Industries Served
MedicalDentalBiomedical
Available Surface Finishes
PassivationPVD CoatingElectropolishAnodize
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