Ti-6Al-4V ELI (Grade 23)

How Ti-6Al-4V ELI (Grade 23) machines

Machinability is 1.5/5, the same demanding behavior as standard Grade 5. Low thermal conductivity concentrates heat at the edge, and the alloy work-hardens and reacts with tooling. Use sharp carbide, slow speeds with high feeds, maximum rigidity, abundant flood coolant, and avoid dwelling; light, smeared cuts cause rapid tool failure and surface damage.

Manufacturing & processing

Grade 23 is processed by CNC, forging, and 3D printing, the latter increasingly common for patient-specific implants. It is supplied annealed and biocompatible. Like all titanium it demands inert-gas shielding when welding to avoid embrittling gas pickup, and additive parts are often hot-isostatic-pressed to close porosity for fatigue-critical service.

Typical applications

Best for medical implants and fracture-critical parts. Typical uses include orthopedic and dental implants, bone plates and screws, spinal hardware, and aerospace components where the improved fracture toughness and ductility of the low-interstitial chemistry reduce crack-propagation risk.

When to choose it

Choose Grade 23 when biocompatibility or fracture toughness is critical, especially implants and damage-tolerant aerospace parts. If you only need strength-to-weight and not the ELI toughness, standard Grade 5 is cheaper. For corrosion-only formed parts, CP grades cost less.

Suitable surface finishes

Common finishes for Ti-6Al-4V ELI (Grade 23): Type II anodizing, bead blasting, electropolishing. Use the finish selector →

Property values are typical/nominal for early guidance and vary by temper, grade, supplier and heat treatment. Confirm critical specs against a certified datasheet or with an mfgiq engineer.