The main difference between Ti-6Al-4V ELI (Grade 23) and Ti-6Al-4V (Grade 5) is that in ELI (Extra Low Interstitials) the maximum oxygen content is lowered to 0.13%. This gives the material an improved fracture toughness.
- Ti 6Al-4V ELI has a tendency to stick, fret or cold weld with drawing dies during processing.