What is the Titanium Ti-6Al-4V(Grade 5)？

Ti-6Al-4V (Grade 5) is classed as an alpha-beta alloy that is most widely used of high strength titanium alloys. The alloy combines its good mechanical strength and low density with excellent corrosion resistance. This material is used in areas such as Aero-engine components, Airframe components, Marine equipment, Offshore oil and gas equipment, Power generation industry, Autosport components and Medical equipment.



A major feature of Ti-6Al-4V is it’s fully heat treatable in sections up to one inch and used up to approximately 400°C (750°F).

Subcategory: Alpha/Beta Titanium Alloy; Metal; Nonferrous Metal; Titanium Alloy

Key Words: Ti-6-4; UNS R56400; ASTM Grade 5 titanium; UNS R56401 (ELI); Ti6Al4V, biomaterials, biomedical implants, biocompatibility.

Material Notes:

Information provided by Allvac and the references. Annealing Temperature 700-785. Alpha-Beta Alloy.

Applications: Blades, discs, rings, airframes, fasteners, components. Vessels, cases, hubs, forgings. Biomedical implants.

Biocompatibility: Excellent, especially when direct contact with tissue or bone is required. Ti-6Al-4V's poor shear strength makes it undesirable for bone screws or plates. It also has poor surface wear properties and tends to seize when in sliding contact with itself and other metals. Surface treatments such as nitriding and oxidizing can improve the surface wear properties.

Chemical Compatibility

Titanium forms a very tenacious surface oxide layer, which is an outstanding corrosion inhibitor. The human body and bodily fluids have no effect on titanium. Titanium is also compatible with bone growth and is the most biocompatible of all metals.



Electrical Properties

The typical electrical properties of Ti-6Al-4V at ambient temperatures are:

Electrical resistivity 1028.6 ohms-cmil/ft (171 microhm-cm)

Electrical conductivity 1.01% (%IACS)



Advantages of Ti-6Al-4V

• Biocompatible

• Low Density

• High Melting Point