Grade 23 – Ti-6Al-4V ELI Medical Titanium Grade 23 ELI

Grade 23 (Ti-6Al-4V ELI) is an Extra Low Interstitial variant of Grade 5 with tightly controlled oxygen (≤0.13%), nitrogen, and carbon limits. This ELI chemistry delivers superior fracture toughness, ductility, and fatigue resistance, making it the preferred material for implantable medical devices and cryogenic applications where reliability is critical.

Yes. We machine Grade 23 Ti-6Al-4V ELI in our ISO 13485-compliant facility using Swiss-type CNC turning and 5-axis milling. We achieve tolerances up to ±0.003 mm (±0.00012 in) with surface finishes down to Ra 0.1 µm. All medical components are processed under strict process controls with full batch traceability.

Every medical order includes EN 10204 Type 3.1 MTRs documenting chemical composition per ASTM F136, CMM dimensional inspection reports, surface finish verification, and passivation certification. UDI-compliant laser marking and FDA/ISO 13485 DHR traceability are available.

For permanent, load-bearing implantable devices (orthopedic stems, spinal cages, dental implants, fracture-fixation plates that remain in the body), Grade 23 (Ti-6Al-4V ELI) is the preferred material because its lower interstitial content yields measurably higher fatigue life and fracture toughness. Grade 5 can be used for non-implant surgical instruments, external fixators, and short-term devices, but the ELI variant is required where long-term biocompatibility and cyclic loading intersect.

No — not for regulated applications. They share the same nominal chemistry, so machinability, tool selection, and CMM inspection workflow are essentially identical, but the MTR must declare the correct UNS number (R56400 vs R56401) and the applicable standard (ASTM F136 for Grade 23, AMS 4928 / AMS 4911 for Grade 5). Substituting Grade 5 for a Grade 23 callout will fail medical device audits even when dimensional results are equivalent.