Titanium Grade 5 | Ti-6Al-4V | Titanium Supplier Thailand | UNS R56400 | 3.7164 | ASTM B348



Titanium Grade 5, also known as Ti6Al4V, Ti-6Al-4V or Ti 6-4, it is one of the most popular alloys in the titanium industry and accounts for almost half of the titanium used in the world today. Commonly referred to as Ti-6AL-4V (or Ti 6-4), this designation refers to its chemical composition of almost 90% titanium, 6% aluminum, 4% vanadium, 0.25% (max) iron and 0.2% (max) oxygen.

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Grade 5 Titanium is the workhorse of all the titanium grades. Among all the titanium grades, the most commonly used titanium alloy is the Grade 5 titanium alloy (also known as Ti6Al4V, Ti-6Al-4V or Ti 6-4), it is formed with mixing pure titanium with 6% aluminium and 4% vanadium.

Its high strength, lightweight and corrosion resistance enable Titanium Grade 5 to be used in many applications. The most common market is aerospace, medical, marine and chemical processing industries. The alloy is also “age hardenable” by heat treatment to achieve even higher strengths.


Ti 6AL-4V / Titanium Grade 5 is the best alloy for use in the creation of such things :

- Aircraft turbines

- Engine components

- Aircraft structural components

- Aerospace fasteners

- High-performance automatic parts

- Marine applications

- Sports equipment


CategoryTitanium Alloy
TypeAlpha-beta alloy
DesignationsUnited States: ASTM B265 Grade5, ASTM B348 Grade5, ASTM B381 Grade5, MIL-T-9046, MIL-T-9047, AMS 4928, AMS 4911, AMS 4906, AMS 4965

PropertyTypical Value
Density g/cm3 (lb/ cu in)4.42 (0.159)
Melting Range °C±15°C (°F)1649 (3000)
Specific Heat J/kg.°C (BTU/lb/°F)560 (0.134)
Volume Electrical Resistivity ( (67)
Thermal Conductivity W/m.K (BTU/ft.h.°F)7.2 (67)
Mean Co-Efficient of Thermal Expansion 0-100°C /°C (0-212°F /°F)8.6×10-6 (4.8)
Mean Co-Efficient of Thermal Expansion 0-300°C /°C (0-572°F /°F)9.2×10-6 (5.1)
Beta Transus °C±15°C (°F)999 (1830)

Table 2. Typical physical properties for Ti6Al4V
Mechanical Properties

PropertyMinimumTypical Value
Tensile Strength MPa (ksi)897 (130)1000 (145)
0.2% Proof Stress MPa (ksi)828 (120)910 (132)
Elongation Over 2 Inches %1018
Reduction in Area %20
Elastic Modulus GPa (Msi)114 (17)
Hardness Rockwell C36
Specified Bend Radius 4.5
Specified Bend Radius >0.070 in x Thickness5.0
Welded Bend Radius x Thickness6
Charpy, V-Notch Impact J (ft.lbf)24 (18)

Table 3. Typical mechanical properties for Ti6Al4V.

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