Titanium Grade 2 (CP) vs Ti-6Al-4V ELI (Grade 5 ELI): 79% composition overlap. Some similarities but notable differences in alloying elements.
Titanium Grade 2 (CP) vs Ti-6Al-4V ELI (Grade 5 ELI)
Side-by-side chemical composition and mechanical property comparison.
Overview
Titanium Grade 2 (CP)
3.7035
The workhorse commercially pure titanium grade. Best balance of strength, ductility, and corrosion resistance among CP grades. Excellent resistance to seawater, chlorides, and oxidizing acids. Used for heat exchangers, chemical processing, marine hardware, desalination, and medical implants.
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.
| Titanium Grade 2 (CP) | Ti-6Al-4V ELI (Grade 5 ELI) | |
|---|---|---|
| Material Number | 3.7035 | 3.7165 |
| Category | Titanium | Titanium |
| Standard | ASTM B265 | ASTM F136 |
Chemical composition (wt%)
| Element | Titanium Grade 2 (CP) | Ti-6Al-4V ELI (Grade 5 ELI) | Overlap |
|---|---|---|---|
| C | 0–0.08% | 0–0.08% | OK |
| V | — | 3.5–4.5% | — |
| Al | — | 5.5–6.5% | — |
| Ti | — | — | — |
Mechanical properties
| Property | Titanium Grade 2 (CP) | Ti-6Al-4V ELI (Grade 5 ELI) | Unit |
|---|---|---|---|
| tensile_strength | ≥ 345 | ≥ 860 | MPa |
| yield_strength | ≥ 275 | ≥ 795 | MPa |
| elongation | ≥ 20 | ≥ 10 | % |
Compatibility Assessment
Titanium Grade 2 (CP) and Ti-6Al-4V ELI (Grade 5 ELI) share some characteristics (79% 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 Titanium Grade 2 (CP) the same as Ti-6Al-4V ELI (Grade 5 ELI)?
Titanium Grade 2 (CP) and Ti-6Al-4V ELI (Grade 5 ELI) have a 79% composition overlap. For most purposes, they can be considered similar.
Can I replace Titanium Grade 2 (CP) with Ti-6Al-4V ELI (Grade 5 ELI)?
In many cases, yes. The compositions overlap significantly (79%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between Titanium Grade 2 (CP) and Ti-6Al-4V ELI (Grade 5 ELI)?
The main differences are in the following elements: overall alloying content. Titanium Grade 2 (CP) 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.