Ti-6Al-2Sn-4Zr-6Mo vs Ti-6Al-7Nb: 84% composition overlap. Some similarities but notable differences in alloying elements.
Ti-6Al-2Sn-4Zr-6Mo vs Ti-6Al-7Nb
Side-by-side chemical composition and mechanical property comparison.
Overview
Ti-6Al-2Sn-4Zr-6Mo
Beta-rich alpha-beta titanium alloy — higher Mo (6%) than Ti-6242 for significantly higher strength (UTS 1100+ STA). Forged beta then STA (Solution Treat + Age) for peak properties. Used for high-compressor discs and blades in jet engines where strength at 300-450°C is critical. More Beta phase than 6242 = higher strength but lower creep resistance. AMS 4981.
Ti-6Al-7Nb
Alpha-beta titanium alloy with Nb replacing V — developed specifically to eliminate vanadium cytotoxicity concerns. Similar mechanical properties to Ti-6Al-4V but with superior biocompatibility and corrosion resistance in body fluids. ISO 5832-11 / ASTM F1295 for surgical implants. Trade name: IMI 367 (originally). Used for hip prostheses, knee replacements, fracture fixation plates, spinal devices, screws, and dental implants.
| Ti-6Al-2Sn-4Zr-6Mo | Ti-6Al-7Nb | |
|---|---|---|
| Material Number | — | — |
| Category | Titanium | Titanium |
| Standard | AMS 4981 | ISO 5832-11 |
Chemical composition (wt%)
| Element | Ti-6Al-2Sn-4Zr-6Mo | Ti-6Al-7Nb | Overlap |
|---|---|---|---|
| C | — | 0–0.08% | — |
| Mo | 5.5–6.5% | — | — |
| Al | 5.5–6.5% | 5.5–6.5% | OK |
| Ti | — | — | — |
Mechanical properties
| Property | Ti-6Al-2Sn-4Zr-6Mo | Ti-6Al-7Nb | Unit |
|---|---|---|---|
| tensile_strength | 1100–1250 | 900–1050 | MPa |
| yield_strength | 1000–1150 | 800–950 | MPa |
| elongation | 8–12 | 8–15 | % |
Compatibility Assessment
Ti-6Al-2Sn-4Zr-6Mo and Ti-6Al-7Nb share some characteristics (84% overlap) but have notable differences. They may be substitutable in some applications but not all. Verify suitability carefully.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Ti-6Al-2Sn-4Zr-6Mo the same as Ti-6Al-7Nb?
Ti-6Al-2Sn-4Zr-6Mo and Ti-6Al-7Nb have a 84% composition overlap. For most purposes, they can be considered similar.
Can I replace Ti-6Al-2Sn-4Zr-6Mo with Ti-6Al-7Nb?
In many cases, yes. The compositions overlap significantly (84%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between Ti-6Al-2Sn-4Zr-6Mo and Ti-6Al-7Nb?
The main differences are in the following elements: overall alloying content. Ti-6Al-2Sn-4Zr-6Mo is a Titanium grade, while Ti-6Al-7Nb 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.