Ti-6Al-4V ELI (Grade 23)
R56401Extra Low Interstitial version of Ti-6Al-4V (Grade 5) — the gold standard for surgical implants. Reduced O (≤0.13%), Fe (≤0.25%), and C (≤0.08%) versus Grade 5 enhance ductility, fracture toughness, and fatigue strength with some strength reduction. Biocompatible (ASTM F136), MRI-compatible, and spontaneously passivating. Used for orthopedic implants (hip/knee replacements, spinal fixation), dental implants, bone plates/screws, aerospace structural components requiring high damage tolerance, and cryogenic vessels down to -320°C. W.Nr. 3.7165.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | R56401 | R56401 | REF |
| ISO | INT | ISO 5832-3 | — | 100% |
Sources: ASTM F136, ISO 5832-3
Mechanical properties — Pro
Annealed
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| Yield Strength | ||
| Elongation |
General
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| Elastic Modulus |
Annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength Rp0.2 | ||
| Elongation A |
General
| Property | Value | Unit |
|---|---|---|
| Density | ||
| Elastic Modulus |
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