Ti-6Al-4V ELI

UNS R56401 titanium
Validate composition

Extra-low-interstitial variant of Ti-6Al-4V with reduced O, N, C, and Fe for improved fracture toughness and fatigue crack growth. Preferred for surgical implants and cryogenic applications.

Applicable Standards

  • AMS 4930
  • ASTM B265 Gr23
  • UNS R56401

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Ti 87.7 91.0 ~89.35
Al 5.5 6.5 ~6.0
V 3.5 4.5 ~4.0
Fe — 0.25 ~0.12
O — 0.13 ~0.07
Ti 87.7–91.0% Al 5.5–6.5% V 3.5–4.5% Fe 0.0–0.25% O 0.0–0.13%

Typical Applications

  • Surgical implants
  • Cryogenic vessels
  • Fracture-critical parts
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