6Al-4V ELI

Ti-6Al-4V-ELI, Grade 23 alloy is a higher purity grade of Ti-6Al-4V alloy. This grade has lower oxygen, carbon, and iron content. It is used in biomedical applications such as surgical instruments, orthopedic implants, and is the preferred grade for marine and cryogenic applications, and some important aerospace components.

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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.

• Sheet
• Strip
• Foil
• Profile (Shaped Wire)
• Round
• Flat
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.
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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