Ti-6Al-2Sn-4Zr-2Mo vs Ti-6Al-4V ELI (Grade 5 ELI): 97% composition overlap. Very similar materials, likely interchangeable for most applications.
Ti-6Al-2Sn-4Zr-2Mo vs Ti-6Al-4V ELI (Grade 5 ELI)
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 5 ELI)
3.7165
Extra Low Interstitial version of Ti-6Al-4V — the standard titanium for surgical implants. Reduced O, N, C, Fe for improved ductility, fracture toughness, and biocompatibility. Used for hip and knee implants, bone screws, dental implants, spinal fusion devices, and cardiovascular stents. Also called Grade 23.
| Ti-6Al-2Sn-4Zr-2Mo | Ti-6Al-4V ELI (Grade 5 ELI) | |
|---|---|---|
| Material Number | — | 3.7165 |
| Category | Titanium | Titanium |
| Standard | ASTM B381 | ASTM F136 |
Chemical composition (wt%)
| Element | Ti-6Al-2Sn-4Zr-2Mo | Ti-6Al-4V ELI (Grade 5 ELI) | Overlap |
|---|---|---|---|
| C | — | 0–0.08% | — |
| 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 5 ELI) | 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 5 ELI) 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 5 ELI)?
Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V ELI (Grade 5 ELI) 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 5 ELI)?
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 5 ELI)?
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 5 ELI) is a Titanium grade.
Related Comparisons
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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.