Ti 6Al-4V, Grade 5 alloy (UNS R56400) is the most widely used titanium grade. It is a two phase α+β titanium alloy, with aluminum as the alpha stabilizer and vanadium as the beta stabilizer. This high-strength alloy can be used at cryogenic temperatures up to about 800°F (427°C). Ti 6Al-4V, Grade 5 alloy is principally used in the annealed condition. 

As in other titanium alloys, Ti 64 alloy’s corrosion resistance is based on the existence of a consistent and continuous oxide layer which is formed spontaneously upon exposure to oxygen.  It has excellent resistance to corrosion in seawater making it a good choice for use in offshore and subsea oil & gas operations where seawater corrosion and weight are concerns.

Ti 6Al-4V is resistant to general corrosion but may be quickly attacked by environments that cause breakdown of the protective oxide layer including hydrofluoric (HF), hydrochloric (HCl), sulfuric and phosphoric acids. Ti 6Al-4V resists attack by pure hydrocarbons, and most chlorinated and fluorinated hydrocarbons provided that water has not caused formation of small amounts of hydrochloric and hydrofluoric acids.

Ti 64 alloy is produced by primary melting using vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Refining is achieved by vacuum arc remelting.  Like other titanium alloys, Ti 64 has a modulus of elasticity of 107 Gpa (16.5 x 103 ksi), roughly half that of carbon steels.

Advantages of Titanium 64:
 • Good corrosion resistance in seawater applications
 • Low density/ high strength-to-weight ratio
 • Low modulus of elasticity
 • Low thermal expansion 
 • Non-magnetic 
 • Good fatigue resistance
 • Good high temperature mechanical properties

Titanium Engineers maintains inventory of  Ti 6Al-4V in both bar and tube.  We specialize in producing large diameter bar to various specifications, from industrial standards to more custom requirements for critical parts.   

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Titanium Engineers, Inc.
P.O. Box 1527
Stafford, TX 77497
PHONE: 281.265.2910
FAX: 281.265.2818
EMAIL: [email protected]

Titanium Engineers AS
Regus Stavanger City Centre
Verksgata 1A, 5th floor
​4013 Stavanger
Norway
PHONE: (+47) 51 22 38 40
EMAIL: [email protected]
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Titanium Engineers Ltd
Unit 1, Coleshill Trade Park
Station Road, Coleshill
Birmingham B46 1AT, UK
PHONE: +44 (0)1675 464200    
EMAIL: [email protected]
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