Titanium Grade 5 (Ti-6Al-4V) – Properties, Applications and Technical Data
Titanium Grade 5, also known as Ti-6Al-4V, is the most widely used titanium alloy and accounts for approximately 50% of all titanium used globally. It combines very high strength with low weight, good corrosion resistance and excellent mechanical properties over a wide temperature range. Due to its versatility, Titanium Grade 5 is used in aerospace, medical technology, marine & offshore, energy and high-performance industrial applications.
Properties of Titanium Grade 5
Titanium Grade 5 is an alloyed titanium alloy with a two-phase structure (α+β), where aluminum stabilizes the alpha phase and vanadium stabilizes the beta phase. This provides an optimal balance between strength, toughness, fatigue strength and corrosion resistance. The material can be heat treated to further improve the mechanical properties and is often used in applications with high demands on performance and reliability.
- Type: Titanium alloy (α+β)
- Alloy: Ti-6Al-4V
- Structure: α+β (hexagonal + cubic)
- Alternative designations: Titanium Grade 5, Titanium class 5, Ti-6Al-4V, Titanium Gr5, UNS R56400, Werkstoffnr 3.7165
- Common standards: ASTM B265, ASTM B348, ASTM B381, ASTM B367, ASTM B337/B338, AMS 4911, AMS 4928, AMS-T-9046, ISO 5832-3
ELI variant (Grade 23)
For medical and cryogenic applications, the ELI version (Extra Low Interstitial) with lower oxygen content is often used for improved toughness and ductility.
- Designation: Titanium Grade 23
- UNS: R56401
- Werkstoffnr: 3.7164
- Standards: ASTM F136, ASTM F1472, AMS 4965
Advantages
- Very high strength to weight ratio
- Good corrosion resistance in marine and industrial applications environments
- Excellent fatigue strength
- Can be heat treated for increased mechanical performance
- Wide range of applications in several high-tech industries
Limitations
- Lower corrosion resistance than commercially pure titanium grades in some chemical environments
- More demanding machining compared to CP titanium
- Higher material cost than lower titanium grades
Typical applications
Aerospace
Structural components, fasteners, engine parts and landing gear where low weight and high strength are essential.
Medical technology
Implants, prostheses and surgical instruments.
Marine & Offshore
Heavy-duty components in seawater environments where both mechanical strength and corrosion resistance are required.
Energy & Industry
Components for turbines, pressure vessels and advanced machine parts in demanding operating environments.
Technical data (annealed condition)
| Yield strength (0.2%): |
~830–880 MPa |
| Tensile strength: |
~900–950 MPa |
| Elongation at break: |
~10–14% |
| Density: |
~4.43 g/cm³ |
| Modulus of elasticity: |
~110 GPa |
| Thermal conductivity: |
~6.7 W/m·K |
| Recommended maximum temperature: |
≤350°C |
| Weldability: |
Good – AWS A5.16 ERTi-5 |
Why choose HARALD PIHL?
HARALD PIHL, with over 100 years of experience in the metal industry, delivers high-quality products worldwide. As nickel and titanium experts, we combine deep material knowledge with fast delivery and full certification.
- Europe's largest stock of titanium
- ASTM / ASM / ISO standards
- Top quality
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
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