Titanium Ti-6Al-4V ELI (Grade 23), also known as Extra Low Interstitial (ELI), is a high-purity version of the widely used Ti-6Al-4V alloy. It is specifically designed for applications that require exceptional strength, superior corrosion resistance, and biocompatibility.
Superior Performance in Critical Applications
Titanium Ti-6Al-4V ELI
High-Strength, Lightweight Alloy for Advanced Applications
Titanium Ti-6Al-4V ELI (Grade 23), also known as Extra Low Interstitial (ELI), is a high-purity version of the widely used Ti-6Al-4V alloy. It is specifically designed for applications that require exceptional strength, superior corrosion resistance, and biocompatibility. The ELI grade is produced with reduced levels of interstitial elements like oxygen, nitrogen, carbon, and iron, resulting in improved ductility and fracture toughness. This makes it ideal for critical applications, particularly in the medical, aerospace, and marine industries.
Key Properties
- High Strength-to-Weight Ratio: Ti-6Al-4V ELI offers excellent mechanical properties, combining high strength with low weight, making it ideal for applications where both are crucial.
- Enhanced Ductility and Toughness: The ELI grade’s reduced interstitial elements provide greater ductility and fracture toughness, making it suitable for environments where materials are subjected to high stress and strain.
- Biocompatibility: Ti-6Al-4V ELI is highly biocompatible, making it the material of choice for medical implants, including orthopedic devices and dental implants.
- Corrosion Resistance: The alloy’s superior resistance to corrosion in harsh environments, including seawater and bodily fluids, extends the life of components in demanding applications.
Machine Spotlight:
EOS M400-4
ADDMAN utilizes the EOS M 400-4 to produce metal parts with exceptional speed and precision. This machine features a substantial build volume and four high-powered lasers, allowing for high productivity and the creation of complex parts with outstanding accuracy. The M 400-4’s advanced automation and versatile material support make it the ideal choice for delivering high-performance components across demanding industrial applications.
Manufacturing and Processing
Titanium Ti-6Al-4V ELI is available in various forms, including bars, plates, sheets, and additive manufacturing powders. It can be processed through forging, machining, and welding, although it requires specialized equipment due to its strength and toughness. The ELI grade is particularly valued in applications where high-quality standards are essential, and any potential impurities must be minimized.
Applications
- Medical Implants: Ti-6Al-4V ELI is extensively used in surgical implants, such as joint replacements, spinal devices, and dental implants, due to its biocompatibility and strength.
- Aerospace: The alloy’s high strength, low weight, and resistance to fatigue make it ideal for critical aerospace components, including aircraft frames and engine parts.
- Marine: Ti-6Al-4V ELI’s excellent corrosion resistance ensures durability in marine environments, making it suitable for underwater components and equipment exposed to seawater.
- Cryogenic Applications: The alloy’s enhanced toughness at low temperatures makes it suitable for use in cryogenic tanks and other components exposed to extreme cold.