Discover what makes Grade 2 Titanium special—its strength, hardness, chemical composition, and why engineers & buyers choose it. Get specs & FAQs.
What is Grade 2 Titanium?
Grade 2 Titanium (Ti Gr2) is a commercially pure titanium (CP Ti) known for its excellent corrosion resistance, weldability, and moderate strength. It’s the most widely used titanium grade in industries like:
✔ Chemical processing (heat exchangers, reactors)
✔ Marine engineering (shipbuilding, desalination plants)
✔ Medical implants (biocompatible & non-toxic)
✔ Aerospace (airframe components, fasteners)
Unlike alloyed titanium (e.g., Grade 5 Ti-6Al-4V), Gr2 is unalloyed, making it more affordable while still offering high performance in corrosive environments.
How Strong is Grade 2 Titanium?
Grade 2 Titanium provides a balance of strength and ductility, ideal for structural applications where corrosion resistance matters more than extreme load-bearing capacity.
Mechanical Properties of Gr2 Titanium
| Property | Value | Comparison |
|---|---|---|
| Tensile Strength | 345 MPa (50 ksi) | ≈ Mild Steel |
| Yield Strength | 275 MPa (40 ksi) | Higher than 304 Stainless |
| Elongation | 20% min. | More ductile than Gr5 |
| Fatigue Strength | 240 MPa (35 ksi) | Excellent for cyclic loads |
Key Takeaway:
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Stronger than stainless steel 304 in yield strength.
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Not as strong as Grade 5 titanium but far more corrosion-resistant.
What is the Hardness of Titanium Grade 2?
Grade 2 Titanium has a Brinell hardness of ~120 HB, making it softer than steel but highly machinable and formable.
Hardness Comparison Table
| Material | Hardness (Brinell HB) |
|---|---|
| Gr2 Titanium | 120 HB |
| 304 Stainless | 215 HB |
| Gr5 Titanium | 334 HB |
Why It Matters:
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Easier to cut, bend, and weld than harder alloys.
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Resists galling (cold welding) in threaded fittings.
What is the Composition of Titanium Grade 2?
Grade 2 is 99.2% pure titanium with small traces of interstitial elements for enhanced strength.
Chemical Composition (ASTM B265)
| Element | Content (%) | Effect on Properties |
|---|---|---|
| Ti (Titanium) | 99.2% min. | Base material |
| O (Oxygen) | 0.25% max. | Increases strength |
| Fe (Iron) | 0.30% max. | Improves ductility |
| C (Carbon) | 0.08% max. | Enhances hardness |
| N (Nitrogen) | 0.03% max. | Strengthens grain structure |
Key Advantages of This Composition:
✅ High corrosion resistance (seawater, chlorides, acids)
✅ Excellent weldability (no post-weld heat treatment needed)
✅ Biocompatible (safe for medical implants)
Who Uses Grade 2 Titanium?
1. Engineers
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Choose Gr2 for pressure vessels, heat exchangers, and piping where corrosion resistance is critical.
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Prefer it over stainless steel in saltwater applications (no pitting).
2. Procurement Managers
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Cost-effective alternative to high-nickel alloys (Hastelloy, Inconel).
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Readily available in sheets, tubes, bars, and fittings.
3. Manufacturers
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Easy to machine, stamp, and weld—reduces production time.
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Used in medical devices, marine hardware, and chemical tanks.
4. DIY & Small-Scale Users
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Popular for custom fabrication (bike frames, jewelry, chemical reactors).
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Available at metal suppliers like [Your Company Name].
Grade 2 Titanium vs. Other Metals
| Property | Gr2 Titanium | 304 Stainless | Gr5 Titanium |
|---|---|---|---|
| Corrosion Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Strength | Moderate | Moderate | Very High |
| Cost | $ | $$ | |
| Weldability | Excellent | Good | Requires Expertise |
Best For:
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Gr2 = Corrosion-prone, budget-friendly applications.
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Gr5 = High-stress aerospace/medical parts.
FAQs About Grade 2 Titanium
Q: Can Grade 2 Titanium be heat-treated?
A: No—it’s a CP titanium. Only alloyed grades (like Gr5) respond to heat treatment.
Q: Is Gr2 titanium magnetic?
A: No, it’s non-magnetic (unlike some stainless steels).
Q: How does it perform in sulfuric acid?
A: Resists dilute sulfuric acid but not concentrated. For harsh acids, consider Gr7 (Ti-0.2Pd).
Q: Where can I buy Grade 2 Titanium rods/sheets?
A: [Your Company] supplies ASTM-certified Gr2 titanium in all forms—[Contact Us] for a quote.
Conclusion: Why Choose Grade 2 Titanium?
✔ Cost-effective (cheaper than high-alloy metals).
✔ Unmatched corrosion resistance (ideal for marine/chemical use).
✔ Easier to machine & weld than Gr5 or stainless.
Need Grade 2 Titanium for your project? Request a Quote today for competitive pricing & fast delivery.
Tel: +86-29-89506568
WA/Mob: +86-17778976690
Email: linhui@lhtitanium.com
