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| Grade | Code | UNS | Titanium |
| TiGr5 | Ti6Al4V | R56400 |
TiGr5 is a heat-treatable titanium alloy containing approximately 6% aluminum and 4% vanadium, with an α+β phase structure. Compared with commercially pure titanium grades, it provides higher mechanical strength, good fatigue resistance, low density, and a high strength-to-weight ratio. Thanks to the stable titanium oxide film formed on its surface, it has high general corrosion resistance and delivers reliable performance in many aggressive environments. Ti6Al4V can have its mechanical properties optimized by heat treatment; therefore, it is one of the most commercially widespread titanium alloys used in engineering applications requiring both strength and structural stability.
| N % | C % | H % | O % | Fe % | Al % | V % | Ti % | Other Elements % |
| max. 0.05 | max. 0.08 | max. 0.015 | max. 0.20 | max. 0.40 | 5.50 – 6.75 | 3.50 – 4.50 | Balance | max. 0.10 each / max. 0.40 total |
| Product Form | Rp0.2, MPa | Rm, MPa | Elongation [%] | Hardness [HRC] | Density [g/cm³] |
| Round Bar | 827 – 862 min. | 896 – 931 min. | 8 – 10 min. | 30 – 34 | 4.43 |
| Plate | 823 – 828 min. | 893 – 895 min. | 10 min. | 30 – 34 | 4.43 |
| Sheet | 866 min. | 920 min. | 8 – 10 min. | 30 – 34 | 4.43 |
Note: Values may vary depending on product section, thickness/diameter, test direction, and the applicable standard. Especially for bars, minimum yield and tensile strength values may decrease as the diameter increases according to AMS 4928; for sheet/plate products, elongation may vary depending on thickness under specifications such as AMS 4911 / AMS-T-9046.
| Sector | Products |
| Aerospace | Compressor blades, engine disks, aircraft body connection parts |
| Space and Defense | Rocket motor cases, pressure vessel components, high-strength forged load-bearing parts |
| Medical | Orthopedic implants, surgical instruments, prosthetic connection parts |
| Marine and Offshore | Seawater-resistant connection parts, pump parts, valve parts |
| Automotive and Motorsport | Engine valves, connecting rods, suspension parts |
| Oil, Gas and Geothermal | Well equipment parts, riser connection elements, high-strength downhole parts |
| Chemical Process and Industrial Equipment | Pump equipment, valve equipment, process line connection parts |
| Sports and Performance Products | Bicycle parts, golf equipment, lightweight and high-strength fasteners |
Ti6Al4V is generally evaluated for service temperatures up to approximately 350–400 °C. Although some datasheets state that it can be used from cryogenic temperatures up to about 427 °C, a more conservative limit is usually preferred under continuous service and high-load conditions. It is machinable; however, due to its low thermal conductivity, heat tends to build up in the cutting zone. Therefore, low cutting speeds, rigid clamping, sharp tools, and generous chlorine-free coolant are recommended. Its weldability is considered good, but inert gas shielding is essential during welding to prevent oxygen, nitrogen, and hydrogen contamination. In terms of heat treatment, it can be used in annealed, stress-relieved, or solution-treated + aged condition; solution treatment + aging heat treatment can increase strength, while section size and cooling rate are decisive factors for the final properties.
TiGr5, Ti6Al4V, Titanium Grade5, R56400
| Product Form | ASTM | AMS | Description |
| Round Bar | ASTM B348 | AMS 4928 | Common annealed AMS standard for bar, wire, forging, and ring products |
| Forged Bar | ASTM B381 | AMS 4920 / AMS 4928 | Considered as a forged product or forging stock |
| Plate | ASTM B265 | AMS 4911 | Common annealed AMS standard used for sheet, strip, and plate |
| Sheet | ASTM B265 | AMS 4911 | Common standard used for thin sheet form |
Carpenter Technology – Ti 6Al-4V / UNS R56400
Note: The information contained in this datasheet is for informational purposes only; no liability is accepted.
