Ti-6Al-2Sn-4Zr-2Mo vs Ti-6Al-4V ELI (Grade 23): 97% composition overlap. Very similar materials, likely interchangeable for most applications.
Ti-6Al-2Sn-4Zr-2Mo vs Ti-6Al-4V ELI (Grade 23)
Side-by-side chemical composition and mechanical property comparison.
Overview
Ti-6Al-2Sn-4Zr-2Mo
Near-alpha high-temperature titanium alloy. Better creep resistance than Ti-6Al-4V at temperatures above 400°C — usable to 550°C continuous. Sn and Zr are alpha-stabilizers providing solid-solution strengthening without eutectoid decomposition. THE jet engine compressor disc alloy (stages 2-7 typically). Also used for afterburner structures, blisks, and gas turbine components. Si addition (0.06-0.10%) further improves creep.
Ti-6Al-4V ELI (Grade 23)
R56401
Extra 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.
| Ti-6Al-2Sn-4Zr-2Mo | Ti-6Al-4V ELI (Grade 23) | |
|---|---|---|
| Material Number | — | R56401 |
| Category | Titanium | Titanium |
| Standard | ASTM B381 | ASTM F136 |
Chemical composition (wt%)
| Element | Ti-6Al-2Sn-4Zr-2Mo | Ti-6Al-4V ELI (Grade 23) | Overlap |
|---|---|---|---|
| C | — | ≤ 0.08% | — |
| Si | 0.06–0.1% | — | — |
| Mo | 1.8–2.2% | — | — |
| V | — | 3.5–4.5% | — |
Mechanical properties
| Property | Ti-6Al-2Sn-4Zr-2Mo | Ti-6Al-4V ELI (Grade 23) | Unit |
|---|---|---|---|
| tensile_strength | 900–1000 | ≥ 860 | MPa |
| yield_strength | 830–900 | ≥ 795 | MPa |
| elongation | 10–15 | ≥ 10 | % |
Compatibility Assessment
Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V ELI (Grade 23) have very similar compositions (97% overlap) and are likely interchangeable for most applications. Verify mechanical properties for your specific use case.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Ti-6Al-2Sn-4Zr-2Mo the same as Ti-6Al-4V ELI (Grade 23)?
Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V ELI (Grade 23) have a 97% composition overlap. For most purposes, they can be considered similar.
Can I replace Ti-6Al-2Sn-4Zr-2Mo with Ti-6Al-4V ELI (Grade 23)?
In many cases, yes. The compositions overlap significantly (97%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V ELI (Grade 23)?
The main differences are in the following elements: overall alloying content. Ti-6Al-2Sn-4Zr-2Mo is a Titanium grade, while Ti-6Al-4V ELI (Grade 23) is a Titanium grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.