Wondering how hard Grade 2 titanium is? Compare titanium grade 2 hardness HRC, Rockwell hardness, and strength vs. Grade 5 titanium. Get expert data for engineers & buyers.
How Hard is Grade 2 Titanium?
Grade 2 titanium (Ti Gr2) is a commercially pure (CP) titanium with moderate hardness, making it easier to machine and form than high-strength alloys like Grade 5 (Ti-6Al-4V).
Key Hardness Properties of Grade 2 Titanium
| Hardness Scale | Grade 2 Titanium | Comparison |
|---|---|---|
| Rockwell B (HRB) | 80-100 HRB | Softer than steel |
| Brinell (HB) | ~120 HB | Similar to annealed copper |
| Vickers (HV) | 140-170 HV | More ductile than Grade 5 |
Why It Matters:
✔ Easier to machine, bend, and weld than harder metals.
✔ Resists galling (cold welding) in threaded fasteners.
✔ Ideal for corrosion-resistant applications (chemical, marine).
How Hard is Titanium HRC?
Titanium rarely uses Rockwell C (HRC) because most grades are too soft. Instead, Rockwell B (HRB) is standard for CP titanium.
HRC vs. HRB for Titanium
| Material | HRC (Rockwell C) | HRB (Rockwell B) |
|---|---|---|
| Grade 2 Ti | Not applicable (too soft) | 80-100 HRB |
| Grade 5 Ti | 30-36 HRC | 95-105 HRB |
| Hardened Steel | 50+ HRC | Not applicable |
Key Insight:
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Titanium grade 2 hardness HRC is used for hardened metals (e.g., tool steel).
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Titanium typically uses HRB (Grade 2) or low HRC (Grade 5).
What is the hardness of titanium Grade 2 vs Grade 5?
Grade 5 (Ti-6Al-4V) is 3x harder than Grade 2 due to its aluminum & vanadium alloying.
Hardness Comparison Table
| Property | Grade 2 Titanium | Grade 5 Titanium |
|---|---|---|
| Rockwell B (HRB) | 80-100 | 95-105 |
| Rockwell C (HRC) | N/A | 30-36 |
| Brinell (HB) | ~120 | ~334 |
| Vickers (HV) | 140-170 | 310-350 |
Which Should You Choose?
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Grade 2 = Better formability, corrosion resistance.
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Grade 5 = Higher strength (aerospace, medical implants).
What is the HRC of TI Grade 2?
Grade 2 titanium does not have an HRC value because it’s too soft for the Rockwell C scale. Instead, it’s measured in:
-
HRB (Rockwell B): 80-100
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Brinell (HB): ~120
Why No HRC?
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HRC requires hardened metals (e.g., heat-treated steel).
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CP titanium (Gr2) is softer and more ductile.
What is the Rockwell Hardness of Titanium?
Titanium hardness varies by grade:
| Titanium Grade | Rockwell Scale | Hardness Value |
|---|---|---|
| Grade 1 (CP Ti) | HRB | 70-90 |
| Grade 2 (CP Ti) | HRB | 80-100 |
| Grade 5 (Ti-6Al-4V) | HRC | 30-36 |
| Grade 23 (Ti-6Al-4V ELI) | HRC | 28-34 |
Takeaway:
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Pure titanium (Gr1/Gr2) = HRB (softer, more formable).
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Alloyed titanium (Gr5/Gr23) = HRC (stronger, harder).
Who Needs This Data?
1. Engineers
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Select Grade 2 for corrosion resistance (chemical tanks, heat exchangers).
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Use Grade 5 for high-strength applications (aircraft components).
2. Procurement Managers
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Compare cost vs. hardness (Gr2 = cheaper, Gr5 = stronger).
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Verify material certs (MTCs) for hardness specs.
3. Manufacturers
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Optimize machining speeds (Gr2 cuts easier than Gr5).
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Avoid tool wear with proper feeds & speeds.
4. DIY & Metalworkers
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Choose Grade 2 for custom fabrication (bike frames, jewelry).
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Grade 5 for high-stress parts (knives, automotive).
FAQs About Titanium Hardness
Q: Can you increase the titanium grade 2 hardness HRC?
A: Yes—cold working (e.g., rolling, forging) can harden CP titanium slightly.
Q: Is Grade 2 titanium harder than stainless steel?
A: No 304 stainless (~215 HB) is harder than Gr2 (~120 HB).
Q: What’s the hardest titanium grade?
A: Grade 38 (Ti-4.5Al-3V-2Fe-2Mo) reaches ~40 HRC.
Q: Where can I buy certified titanium?
A: [Your Company] supplies ASTM-certified Grade 2 & Grade 5 titanium—[Request a Quote].
Conclusion: Choosing the Right Titanium Grade 2 hardness HRC
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Grade 2 (CP Ti) = Best for corrosion resistance & formability (HRB 80-100).
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Grade 5 (Ti-6Al-4V) = Best for high strength (HRC 30-36).
Need titanium with certified hardness values? Contact Us for technical specs & pricing.
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