6AL-4V Eli is an alloyed Grade of Titanium. It is strengthened by the inclusion of roughly 6% Aluminum and 4% Vanadium. Titanium 6AL-4V Eli (Extra-Low Interstitial) is considered a higher purity than 6AL-4V Grade 5 due to its lower inclusions of Iron, and the interstitial elements, Carbon and Oxygen.Ti 6Al/4V ELI sheet has found application in medical implants owing to its excellent biocompatibility, high strength, and MRI compatibility.
6AL-4V Eli Titanium Material Applications.
• Orthopedic pins and screws
• Orthopedic cables
• Ligature clips
• Surgical staples
• Springs
• Orthodontic appliances
• In joint replacements
• Cryogenic vessels
• Bone fixation devices
6AL-4V Eli Titanium Material Specifications.
• AMS 4930 – Bar, Wire, Billet, and Rings (annealed)
• AMS 4931 – Bar, Billet, and Rings
• AMS 4996 – Billet
• ASTM F 136 – Surgical Implants
6AL-4V Eli Titanium Alloy Available Forms.
Coil
• Sheet
• Strip
• Foil
Wire
• Profile (Shaped Wire)
• Round
• Flat
6AL-4V Eli MACHINABILITY
Ti-6Al-4V-ELI, Grade 23 alloy can be machined using practices for austenitic stainless steels using slow speeds, heavy feeds,
rigid tooling, and large amounts of non-chlorinated cutting fluid.
6AL-4V Eli WELDABILITY
Ti-6Al-4V-ELI, Grade 23 alloy is easily welded in the annealed condition.
| Chemical Range for 6AL-4V ELI | ||
| Element | Minimum | Maximum |
| Carbon | — | 0.08 |
| Nitrogen | — | 0.05 |
| Hydrogen | — | 0.012 |
| Iron | — | 0.25 |
| Oxygen | — | 0.13 |
| Aluminum | 5.5 | 6.5 |
| Vanadium | 3.5 | 4.5 |
| Titanium | — | Balance |
| Typical Mechanical Properties for 6AL-4V ELI | |||
| Form | Tensile Strength, min | Yield Strength, min | Elongation in 4D, min |
| Strip, Sheet and Plate-ASTM B265 | 120 ksi | 110 ksi | 10% |
| Bar and Rod-ASTM B348 | 120 ksi | 110 ksi | <1.0″ 7.5%, ≥1.0″ 6.0% |
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