Description
AMS 4930 Round Bars / Titanium Grade 23 (UNS R56407) Round Bars / Ti-6Al-4V ELI Round Bars
AMS 4930 Round Bar is a titanium alloy bar specification covering 6Al-4V Extra Low Interstitial (ELI) titanium in the annealed condition. It is commonly identified as Titanium Grade 23, Ti-6Al-4V ELI, and UNS R56401. AMS 4930 covers titanium alloy bars, wire, forgings, rings, and related forging stock, with the specification focused on annealed material.
Textron Steel and Alloys supplies AMS 4930 Titanium Round Bar for customers requiring high-strength, lightweight and corrosion-resistant titanium for aerospace, medical, engineering and other demanding applications. Material can be offered in different diameters and lengths according to customer requirements, subject to availability and applicable certification.
AMS 4930 Round Bars is also known as Ti-6Al-4V ELI (Extra Low Interstitial) Titanium is a variant of Ti-6Al-4V Titanium with lower content of carbon, iron, and oxygen. It’s used for medical implant devices to take advantage of Titanium’s biocompatibility. Other uses include marine and oil-gas applications.
It is also known as Titanium Grade 23 UNS R56407 or UNS R56404.
Ti 6Al-4V ELI is the extra-low interstitial version of Ti 6Al-4V. Its content is arrived at by the careful selection of ingot raw materials with lower specified limits on iron and the interstitial elements carbon and oxygen. Ti 6Al-4V ELI has been the material of choice for many medical and dental applications due to its excellent biocompatibility, good fatigue strength, and low modulus. The ELI grade has superior damage tolerance (fracture toughness, fatigue crack growth rate) and better mechanical properties at cryogenic temperatures compared to standard grade Ti 6Al-4V. The high-purity alloy is also known as ASTM B348 Grade 23.
What is AMS 4930 Round Bar?
AMS 4930 Round Bar is an aerospace titanium product manufactured from Ti-6Al-4V ELI, an Extra Low Interstitial version of the widely used Ti-6Al-4V titanium alloy. The ELI chemistry places tighter limits on interstitial elements such as oxygen, nitrogen, carbon and hydrogen compared with conventional titanium alloys.
The combination of relatively low density, high specific strength, corrosion resistance and controlled interstitial chemistry makes AMS 4930 Titanium Bar suitable for applications where weight reduction and dependable mechanical performance are important.
AMS 4930 is specifically associated with annealed Ti-6Al-4V ELI bar, wire, forgings and rings.
AMS 4930 Chemical Composition :
| Symbol | Element | Min. | Max. |
| Al | Aluminum | 5.50 | 6.50 |
| V | Vanadium | 3.50 | 4.50 |
| Fe | Iron | 0.25 | |
| O | Oxygen | 0.13 | |
| C | Carbon | 0.080 | |
| N | Nitrogen | 0.050 | |
| H | Hydrogen | 0.0125 | |
| Y | Yttrium | 0.005 | |
| Other, each | 0.100 | ||
| Other, total | 0.400 | ||
| Ti | Titanium | Remainder |
Applications of AMS 4930 :
• Medical implant devices
• Marine usage
• Oil and Gas applications
• Medical Implants and Instrumentation
• Maxillofacial, dental, spinal, trauma, orthopedic and extremities
• Air frames
• Jet and engine rocket components
• Pressure vessels
• Fasteners
• Prosthetic Implants
• Geothermal-well casings
• Automotive components
• Sports equipment
Common Trade Names :
• Ti 6-4 ELI Titanium
• Ti 64 ELI
• 6Al4V ELI Titanium
• Alpha Beta Titanium
• Grade 23 Titanium
• Ti-Grade 23
• 6%Al-4%V ELI Titanium
• ASTM Grade 23
• ASTM B348 Grade 23
• SAE 4928
Common Specifications:
• AMS 4905
• AMS 4907
• AMS 4930
• AMS 4931
• AMS 4956
• AMS 4996
• AMS 6932
• ASTM F 136
• ASTM B 348
• MIL-T-9047
