Titanium Grade 23 (Ti-6Al-4V ELI)
Titanium Grade 23 is the high-purity version of the world-renowned Ti-6Al-4V alloy. The "ELI" designation stands for Extra Low Interstitials, meaning that the levels of oxygen, nitrogen, and iron are strictly reduced during the melting process. This refinement significantly enhances the material’s ductility and fracture toughness, making it the premier choice for applications where safety and structural integrity are non-negotiable.
At Aries Alloys, we understand that Grade 23 is often used in life-critical environments. Therefore, we source only the highest-caliber ELI materials that comply with the most stringent ASTM F136 and AMS 4930 standards, ensuring peace of mind for our medical and aerospace partners.
Specialized Performance Characteristics
- Enhanced Toughness: Compared to standard Grade 5, the ELI version offers superior resistance to crack propagation and fatigue, even under extreme stress.
- Cryogenic Reliability: Maintains excellent mechanical properties and ductility in ultra-low temperature environments (down to liquid nitrogen levels).
- Supreme Biocompatibility: The reduced interstitial elements make it highly compatible with human tissue and bone, minimizing the risk of adverse reactions.
- Incredible Weight Efficiency: Like all titanium alloys, it provides a high-strength profile at roughly 60\% of the weight of stainless steel.
- Corrosion Fatigue Resistance: Performs exceptionally well in environments where the material is subjected to both corrosive fluids and repetitive mechanical loading.
Technical Specs & Material Properties
The ELI Difference:
The secret to Grade 23 lies in the chemistry. By capping the oxygen content at a lower threshold than standard Grade 5, the material becomes less brittle. This makes it easier to machine and much more reliable in applications involving bending or impact.
Key Mechanical Indicators:
- Superior elongation and reduction of area.
- Excellent resistance to stress-corrosion cracking in saline environments.
- Non-magnetic and MRI-safe for medical imaging.
- Modulus of elasticity that closely mimics human bone.
Primary Industry Use Cases
Aries Alloys is a key supplier of Titanium Grade 23 for sectors requiring "human-grade" and "space-grade" reliability:
- Medical Implants: Used for orthopedic pins, screws, joint replacements, and spinal cages.
- Surgical Hardware: Precision surgical instruments and dental root implants.
- Cryogenic Vessels: Components for space exploration and liquified gas storage.
- Subsea Research: High-pressure sensors and housings for deep-ocean exploration.
- Aerospace Components: Leading-edge structural parts where fracture toughness is a priority.
Available Product Forms at Aries Alloys
We provide Ti-6Al-4V ELI in forms optimized for precision manufacturing:
- Medical Grade Bar: Ground round bars for high-speed CNC machining of implants.
- ELI Sheet & Plate: High-integrity flat products for structural assemblies.
- Fine Wire: Specialized wire for surgical sutures and orthodontic staples.
- Forged Blanks: Custom shapes for high-stress medical and aerospace hardware.