NeoNickel

Ti 6Al-4V (Grade 5)

A titanium-aluminium-vanadium alloy, Titanium 6AL-4V (Grade 5) has many applications in a wide variety of industries.

Characteristics of Ti 6Al-4V (Grade 5)

Ti-6al-4v also known as Titanium Grade 5, is the most widely used titanium alloy, renowned for its exceptional combination of strength, lightweight properties, and corrosion resistance.

This alloy contains 6% aluminium and 4% vanadium, with the remainder being titanium, making it an alpha-beta titanium alloy. 

Its balanced mechanical properties and versatility make titanium 6al-4v the ideal choice for a wide range of high-performance applications across various industries, including aerospace, medical, and automotive sectors.

  • UNS Number: R56400
  • Werkstoff Number: 3.7164, 3.7165
  • ASTM: B265, B348, B381, MSRR 8610, 8614, 8652, 4920, 4934, 4935, 4967, 6930, B337, B338
  • AMS: 4911, 4928, 6931, 4965, T-9047
  • Other: BS 3TA11

Product availability

We stock Alloy Ti 6Al-4V (Grade 5) in a variety of product forms to suit different applications and fabrication methods, including plate, round bar, sheet and welding wire. To view available sizes and submit an inquiry, use the dropdown selector below.

Plate
Round Bar
Sheet
Welding Wire

Chemical analysis

%CNOHFeTiAlV
Min-----Balance5.53.5
Max0.080.050.20.1250.4Balance6.754.5

Key Properties

Mechanical Properties

  • High Strength-to-Weight Ratio: Ti-6al-4v offers exceptional strength for its weight, ideal for aerospace applications where reducing mass is crucial.
  • Excellent Fatigue Resistance: The alloy’s microstructure ensures it withstands cyclic stress effectively, making it suitable for components exposed to repeated loads.
  • Tensile and Yield Strength: Titanium 6al-4v supports significant loads while maintaining structural integrity.

Thermal Properties

  • Performance at Elevated Temperatures: The alloy maintains its properties up to about 400°C, making it suitable for high-temperature environments.

Corrosion Resistance

  • Oxidation (link ) and Corrosion Resistance: Titanium alloy ti-6al-4v is highly resistant to corrosion and oxidation, protecting it from harsh environments like seawater and chemicals.
  • Comparison with Other Titanium Grades: Compared to Grade 2 (link https://www.neonickel.com/alloys/titanium-alloys/titanium-cp3-grade-2 ), ti-6al-4v offers greater strength.
  • Density: 4.43 g/cm³
  • Melting Range: 1609-1660 ⁰C
  • Hardness, Vickers: 349
  • Beta Transus: 996 +/- 28 ⁰C

Mechanical & Physical Properties

Mechanical & Physical Properties21°C93°C204°C316°C
Coefficient of Thermal Expansion µm/m⁰C9.549.729.9
Thermal Conductivity /kcal/(hr.m.°C)5.956.47.749.08
Modulus of Elasticity / x105 MPa1.151.11.039.65

Typical Tensile Strength & Fracture Toughness for Flat Rolled Products

0.2% Yield Strength, ksiFracture Toughness K1C, ksi √in
Annealed (continuously rolled sheet)132, 142 (transversea)128, 140 (transversea)
Beta annealed131134
Beta STA 677°C 128150
Beta STA 538°C 143120
STA 677°C137105
STA 538°C15980

Applications of Ti 6Al-4V (Grade 5)

Aerospace Industry

  • Airframes & Jet Engines: Ti6al4v’s high strength-to-weight ratio and temperature resistance make it ideal for aircraft structures, turbine blades, and engine components.
  • Landing Gear: Its fatigue resistance and strength ensure durability in landing gear systems.

Medical Industry

  • Implants & Surgical Instruments: The alloy's biocompatibility and corrosion resistance make it suitable for dental implants and surgical instruments.
  • Orthopaedic Devices: Used in hip replacements and spinal implants for their strength and lightweight properties.
  • Turbine blades, discs and rings
  • Aircraft structural components
  • Fasteners
  • Hand tools
  • Sporting equipment
  • Valves and pumps

Benefits of Choosing Ti 6Al-4V (Grade 5)

Ti-6al-4v is the most commonly used titanium alloy due to its exceptional blend of properties that make it suitable for a wide range of applications:

  • Optimal Strength-to-Weight Ratio: Offers superior strength and lightness, ideal for aerospace, military, and high-performance applications.
  • Versatility: Its high strength, low weight, and corrosion resistance make it suitable for a wide range of uses, from aircraft and medical implants to automotive and marine components.
  • Exceptional Fatigue Resistance: Endures cyclic stresses and repeated loading without significant degradation, ensuring durability.
  • Thermal Stability: Maintains mechanical properties up to 350°C, suitable for high-temperature environments.
  • Corrosion Resistance: Resists oxidation and corrosive environments, reducing failure rates and extending service life.
  • Cost Efficiency: Its durability and reduced maintenance lower lifecycle costs, making it more economical over time despite higher initial costs.

Ti6al4v alloy is favoured for its outstanding balance of strength, weight, and corrosion resistance. Its long-term performance, combined with its cost-effectiveness through reduced maintenance and enhanced efficiency, makes it a preferred choice for high-performance applications across various industries. For further advice and support, contact us today.

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