Titanium Grade 1 vs Ti Grade 23: 73% composition overlap. Some similarities but notable differences in alloying elements.
Titanium Grade 1 vs Ti Grade 23
Side-by-side chemical composition and mechanical property comparison.
Overview
Titanium Grade 1
3.7025
The softest and most ductile commercially pure titanium grade. Lowest O content (0.18% max) for maximum formability. Used for plate heat exchangers, chemical plant vessels, explosive cladding, deep-drawn parts, and anodizing applications. Lower strength than Grade 2 but superior formability.
Ti Grade 23
Ti-6Al-4V ELI (Extra Low Interstitials) — the medical-grade version of the most common titanium alloy. Lower O, N, C, Fe limits than Grade 5 for improved fracture toughness, ductility, and biocompatibility. ASTM F136 specifies it for surgical implants. Slightly lower strength than Grade 5 but better fatigue crack growth resistance. Used for orthopedic implants (hip/knee), spinal fixation, dental implants, and cryogenic aerospace applications.
| Titanium Grade 1 | Ti Grade 23 | |
|---|---|---|
| Material Number | 3.7025 | — |
| Category | Titanium | Titanium |
| Standard | ASTM B265 | ASTM F136 |
Chemical composition (wt%)
| Element | Titanium Grade 1 | Ti Grade 23 | Overlap |
|---|---|---|---|
| C | 0–0.08% | 0–0.08% | OK |
| V | — | 3.5–4.5% | — |
| Al | — | 5.5–6.5% | — |
| Ti | ≥ 99% | — | — |
Mechanical properties
| Property | Titanium Grade 1 | Ti Grade 23 | Unit |
|---|---|---|---|
| yield_strength | ≥ 170 | 795–860 | MPa |
| elongation | ≥ 24 | 10–15 | % |
| e_modulus | ≥ 103 | ≥ 114 | GPa |
Compatibility Assessment
Titanium Grade 1 and Ti Grade 23 share some characteristics (73% 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 1 the same as Ti Grade 23?
Titanium Grade 1 and Ti Grade 23 have a 73% composition overlap. For most purposes, they can be considered similar.
Can I replace Titanium Grade 1 with Ti Grade 23?
In many cases, yes. The compositions overlap significantly (73%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between Titanium Grade 1 and Ti Grade 23?
The main differences are in the following elements: overall alloying content. Titanium Grade 1 is a Titanium grade, while Ti 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.