Titanium
Titanium is a strong, lightweight, and corrosion-resistant metal known for its high strength-to-weight ratio. It is widely used in aerospace, medical implants, marine, and chemical processing industries due to its durability and biocompatibility. Titanium naturally forms a protective oxide layer, making it highly resistant to corrosion, even in seawater and acidic environments. It retains its mechanical properties at high temperatures and is non-magnetic and hypoallergenic. Common titanium alloys, like Grade 5 (Ti-6Al-4V), offer enhanced strength and are used in critical structural applications. Although more expensive than steel or aluminum, titanium offers superior performance in extreme conditions. Its combination of strength, lightness, and corrosion resistance makes it ideal for high-performance and demanding applications.
Specification Of Hastelloy Pipe Fittings
| Grade | Composition | Key Properties | Common Applications |
|---|---|---|---|
| Grade 1 | Pure titanium (99.5%) | Excellent corrosion resistance, high ductility | Chemical processing, desalination, marine engineering |
| Grade 2 | Pure titanium (99.2%) | Good strength, corrosion resistance, formability | Aerospace, automotive, medical devices, marine |
| Grade 3 | Pure titanium (99.5%) | Higher strength than Grade 2, good corrosion resistance | Aerospace, pressure vessels, heat exchangers |
| Grade 4 | Pure titanium (99.0%) | Highest strength of commercially pure grades | Aerospace, military, chemical processing |
| Grade 5 | Ti-6Al-4V (90% Ti, 6% Al, 4% V) | Excellent strength, corrosion resistance, weldability | Aerospace, medical implants, automotive, structural parts |
| Grade 9 | Ti-3Al-2.5V (90% Ti, 3% Al, 2.5% V) | Improved formability, moderate strength and corrosion resistance | Aerospace, sporting equipment, marine |
| Grade 23 | Ti-6Al-4V ELI (Extra Low Interstitials) | High strength, biocompatible, for medical use | Medical implants, aerospace, high-performance applications |
Key Points:
- Grades 1–4 are commercially pure titanium, offering increasing strength with decreasing ductility.
- Grade 5 (Ti-6Al-4V) is the most widely used titanium alloy for its excellent mechanical properties.
- Grade 23 is a medical-grade version of Grade 5 with enhanced biocompatibility.
- Grade 9 provides a good balance of strength and formability, often used in tubes and piping.