In the world of advanced engineering and high-performance materials, Titanium Grade 5 (Ti-6Al-4V) is widely regarded as the ultimate lightweight alloy. Known for its exceptional strength-to-weight ratio, corrosion resistance, and biocompatibility, this alloy is a top choice across industries like aerospace, medical, automotive, and chemical processing.
Whether you’re researching titanium grades or comparing Grade 23 titanium vs Grade 5, this guide provides a deep dive into Ti-6Al-4V properties, applications, and where to source titanium tubes and fittings in India.
What Is Ti-6Al-4V (Titanium Grade 5)?
Ti-6Al-4V (Titanium Grade 5) is an alpha-beta titanium alloy consisting of 90% titanium, 6% aluminum, and 4% vanadium. It combines the lightness of titanium with the added strength from alloying elements, resulting in a material that is 30% stronger than pure titanium yet just as corrosion-resistant.
It is also referred to by various designations:
- UNS R56400
- AMS 4911
- ASTM B348 (for bars)
| Element | Percentage (%) |
| Titanium (Ti) | Balance |
| Aluminum (Al) | 5.5 – 6.75 |
| Vanadium (V) | 3.5 – 4.5 |
| Iron (Fe) | ≤ 0.40 |
| Oxygen (O) | ≤ 0.20 |
| Carbon (C) | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.05 |
| Hydrogen (H) | ≤ 0.015 |
Ti-6Al-4V Mechanical Properties
| Property | Value |
| Density | 4.43 g/cm³ |
| Tensile Strength | 900 – 1100 MPa |
| Yield Strength | ~830 MPa |
| Elongation at Break | ~10% |
| Modulus of Elasticity | ~114 GPa |
| Hardness (Rockwell C) | 36 – 41 |
| Melting Point | 1604–1660°C |
Where Is Titanium Grade 5 Used?
| Industry | Applications |
| Aerospace | Engine components, airframes, turbine blades |
| Medical | Bone implants, surgical instruments, dental fixtures |
| Automotive | Performance exhausts, connecting rods, wheel hubs |
| Marine | Offshore components, fasteners, heat exchangers |
| Chemical | Reactors, piping systems, heat exchangers |
Common Product Forms of Ti-6Al-4V
| Form | Standard/Spec | Usage |
| Titanium Round Bar | ASTM B348 | Machined parts, shafts |
| Titanium Sheets/Plates | ASTM B265 | Aerospace panels, armor |
| Titanium Fittings | ASME B16.9/B16.11 | Corrosion-resistant pipe connections |
| Titanium Tubes | ASTM B338 | Condensers, heat exchangers, surgical tubes |
Ti-6Al-4V vs Other Titanium Grades
| Feature | Grade 5 (Ti-6Al-4V) | Grade 23 (Ti-6Al-4V ELI) |
| Strength | Higher | Slightly lower |
| Ductility | Good | Better |
| Biocompatibility | High | Superior (used in implants) |
| Oxygen Content | ~0.2% | ~0.13% |
| Typical Use | Aerospace, marine | Medical implants |
Ti-6Al-4V Density and Strength-to-Weight Advantage
Chart: Titanium Grade 5 vs Steel
| Property | Ti-6Al-4V | Stainless Steel (304) |
| Density (g/cm³) | 4.43 | 7.9 |
| Tensile Strength (MPa) | 1000 | 505 |
| Corrosion Resistance | Excellent | Good |
| Cost (Approx.) | Higher | Moderate |
Need High-Performance Titanium Products?
Looking for Titanium Grade 5 tubes, fittings, or forged bars?
Contact leading titanium tube suppliers in India offering:
- ASTM B348 and B338 compliant products
- Custom machining and cutting
- Global export and MTC documentation
Final Thoughts
Titanium Grade 5 Ti-6Al-4V is the ultimate lightweight alloy because it perfectly balances mechanical strength, low density, and excellent corrosion resistance. Whether you’re building an aircraft structure, a marine shaft, or a biomedical tool, Ti-6Al-4V delivers unmatched reliability in critical applications.
Choose it when failure is not an option, and make sure you partner with certified titanium suppliers in India to ensure quality and performance.